Volume 21 Issue 4 December 2007 ISSN 1832-4436 Registered by Australia Post Publication No: 233066 / 00021 www.lastek.com.au sales@lastek.com.au AOS News Volume 21 Number 4 2007 LIMF-10 Optical Thin Film Measurement Thin films are widely used in a variety of applications and the Thin-Film Measurement System can easily determine their properties. Based on interference spectral analysis of multi-reflection beams, this instrument functions non-contact optical measurement of thickness, refractive index, and extinction coefficient of various thin films and coatings. LIMF-10 has the ability to connect to your microscope to reduce the spot size or to dismantle for solely spectroscopic use. Measurement Range Thickness only 20nm to 50µm Thickness with n and k 100nm to 10µm Wavelength Range 380nm to 1000nm Accuracy The greater of ± 1 nm or ± 0.5% Precision 0.2nm Repeatability 0.1nm Spot Size (normal) Adjustable 1.2 mm to 10 mm Spot Size (microscope) Minimum 10 µm Sample Size From 1mm and up Layers 1 to 4 layers Detector Type Linear silicon CCD array Light Source Tungsten Halogen Stage Size 160 × 290 mm Contact us for further info www.lambdasci.com Ɣ Ɣ Ɣ Ɣ Ɣ Substrate refractive index and absorption index Film thickness, mean and standard deviation Film material refractive index and absorption index evaluation Convenient selection from an included database with various film and substrate materials User defined materials selectable and user defined material data import/export Lambda Scientific Pty Ltd Phone: +61 8 8267 2686 Fax: +61 8 8267 2689 E-mail: sales@lambdasci.com 1 AOS News Volume 21 Number 4 2007 ABN 63 009 548 387 AOS News is the official news magazine of the Australian Optical Society. Formed in 1983, the Society is a nonprofit organisation for the advancement of optics in Australia. Membership is open to all persons contributing to, or interested in, optics in the widest sense. See the back page (or the AOS website) for details on joining the Society. Submission guidelines The AOS News is always looking for contributions, especially from AOS members. Here is a short summary of how to make a submission. AOS News Editorial Board Robert Ballagh Physics Department University of Otago PO Box 56 Dunedin New Zealand John Love Optical Sciences Group Australian National University RSPhysSE Canberra, ACT 0200 Christopher Chantler School of Physics University of Melbourne Parkville, Vic 3010 Halina Rubinsztein-Dunlop Department of Physics University of Queensland QLD 4072 Ben Eggleton Director, CUDOS School of Physics University of Sydney Sydney, NSW 2006 David Sampson School of Electrical, Electronic & Computer Engineering University of Western Australia 35 Stirling Highway Crawley, WA 6009 2 How can you submit? ►► The easiest way is by email. We accept nearly all file formats. (Famous last words!). ►► Submitted articles will be imported into an Adobe InDesign file. It is best if the diagrams and other graphics are submitted as separate files. All common graphics formats are acceptable, but the resolution must be in excess of 300d.p.i.. Be aware that all colour diagrams will be rendered in grayscale, so if you do use colours, choose colours that show up well in grayscale. ►► When using Greek letters and mathematical symbols, use font sets such as Symbol or MT Extra. Please avoid using symbols that are in Roman fonts, where the Option or Alt key is used; e.g. Opt-m in Times font on the Mac for the Greek letter mu. ►► If using TeX, use a style file similar to that for Phys Rev. Letters (one column for the title, author and by-line, and two for the main body). The top and bottom margins must be at least 20mm and the side margins 25mm. Submit a pdf file with the diagrams included (no page numbers), as well as copies of the diagrams in their original format in separate files. ►► If using a word processor, use a single column. If you do include the graphics in the main document, they should be placed in-line rather than with anchors, but must be submitted separately as well. What can you submit? • • • • • • Scientific Article A scientific paper in any area of optics. Review Article Simply give a run down of the work conducted at your laboratory, or some aspect of this work. Conference Report News Item Book Review Cartoon or drawing Reviewing of papers On submission of a scientific or review article you may request that the paper be refereed, and if subsequently accepted it will be identified as a refereed paper in the contents page. The refereeing process will be the same as for any of the regular peer reviewed scientific journals. Please bear in mind that refereeing takes time and the article should therefore be submitted well in advance of the publication date. AOS News Volume 21 Number 4 2007 Submission Of Copy: Contributions on any topic of interest to the Australian optics community are solicited, and should be sent to the editor, or a member of the editorial board. Use of electronic mail is strongly encouraged, although submission of hard copy together with a text file on CD will be considered. Advertising: Potential advertisers in AOS News are welcomed, and should contact the editor. Rates: Under Review Places may be booked for placing ads - this attracts a 10% surcharge. Black and White in main body of newsletter - free to corporate members. Conference announcements are free. Copy Deadline Articles for the next issue (Mar 08) should be with the editor no later than 5 March 2008, advertising deadline 29 February 2008. Editor Michaël Roelens The University of Sydney CUDOS, School of Physics Sydney, NSW 2006 Tel: +61 (0) 2 9036 9430 Fax: +61 (0) 2 9031 7726 mroelens@physics.usyd.edu.au AOS News is the official news magazine of the Australian Optical Society. The views expressed in AOS News do not necessarily represent the policies of the Australian Optical Society. Australian Optical Society website: http://www.optics.org.au • News • Membership • Optics links • Prizes/awards • Conferences • Jobs/Scholarships • Affiliated societies • ...and more December 2007 Volume 21 Number 4 AOS News Articles 11 Novel, narrow linewidth fibre laser opens new opportunities, Nemanja Jovanovic 15 Metamaterials: Challenging the fundamentals of nature, Yuri Kivshar, Ilya Shadrivov, David Powell, and Steven Morrison 25 OSA Annual Student Chapter Leadership Meeting, Cameron Smith 28 CUDOS News Departments 5 President’s Report – Hans Bachor 7 Editor’s Intro – Michaël Roelens 21 Conference Watch 29 Product News 33 Conference Announcement: Focus on Microscopy 34 ICO Newsletter 43 AOS Subscription Form 44 Index of Advertisers & Corporate Members Information Cover Pictures: • Background: Strong Point-by-point inscribed fibre Bragg grating in the core of a double -clad ytterbium doped optical fibre, (side view, see page 11) • Insets (left to right) • Structure of nonlinear tunable metamaterial. (see page 15) • Cross-section of a Hex shaped double-clad ytterbium doped fibre laser (see page 11) • Diffracted HeNe light off a strong PbP inscribed FBG (see page 11) 3 AOS News Volume 21 Number 4 2007 LIRA-300 Laser Raman Spectrometer Laser Raman Spectrometer is used for Raman spectrum and fluorescence measurements in many laboratories. It is suitable for basic research and design for thorough educational purposes in universities and colleges. Features x x x x x x USB interfaced with Windows application High resolution and low stray light Single-photon counter detector with high sensitivity and low noise External light path and different lasers allowed Solid state laser of more than 40mW at 532nm Various accessories for analysis of liquid and solid samples Monochromator Optical Grating 1200 lines/mm, blazed wavelength at 500 nm Slit Width 0~2 mm, continuously adjustable Notch Filter (optional) Wavelength 532 nm Single-photon Counter Integration Time 0~30 min Max Count 10 7 Wavelength Range 200~800 nm Wavelength Accuracy 0.4 nm Wavelength Repeatability 0.2 nm Stray Light 10 -3 Half-width of Spectral Line 0.2 nm at 586 nm Overall Dimensions 700×500× 450 mm Weight 70 kg Contact us for further info www.lambdasci.com 4 Lambda Scientific Pty Ltd Phone: +61 8 8267 2686 Fax: +61 8 8267 2689 E-mail: sales@lambdasci.com AOS News Volume 21 Number 4 2007 President’s Report Y ou will be aware of really interesting, high quality optics here in Australia. And you are aware of examples of excellent optics and photonics manufacturing in this country. Once you start to look around you will realise that we have a very successful and lively optics community ranging from fundamental studies, with examples such as quantum optics, high bandwidth photonics, and extremely sensitive instruments such as gravitational waves detectors, to precision manufacturing and many applications such as photo-voltaics, biophysics or laser based machining. And you will know of other impressive projects. Recently I had the opportunity to present a cross section of optics in Australia to the OSA board at the annual meeting “Frontiers in Optics” held in California. Everybody in the audience knew about some examples of our great work in optics in Australia, but most were surprised about the breadth, the quality and the success of our activities. This is impressive, in particular given the small population and economy we have. It was a pleasure to show off what the members of the AOS are achieving, and we can all be proud of it. At the same time it was good to experience the upbeat atmosphere that exists in the USA, and in particular in California in optics. The photonics industry is rebounding. Companies are back asking for solutions to specific problems, looking for skilled employees, wanting to hire talented young people. Optics applications, such as the imaging of nanoscale objects, applications in manufacturing, medicine and environmental engineering are some of the topics that were discussed. The conference in San Jose was certainly inspiring, and this was mirrored by the bustle of activity at the Laser Show in München earlier this year. It is good that optics R&D is well and alive again, and to see that we can play an important part in this global activity. There is more than just a mining boom going on in this country. The next 12 months will bring several international meetings to Australia, and we will have the opportunity to show our colleagues our latest results. This starts with a series of topical meetings, such as the OSA meeting on quantum-atom optics and SPIE meetings on photonics and fibre sensors. Next we have the large ICO/OECC meeting in Sydney in July, with several satellite events. This will be biggest event for the AOS in quite a while. Check the events calendar in this issue for details. I encourage you to contribute to these events, to take as many students along, let them present their excellent work and let them experience the excitement of optics, together with the visitors who will be impressed yet again. Finally, it is my pleasure to welcome Michaël Roelens as the new editor of AOS News. I thank the outgoing editor Murray Hamilton for his long standing and tireless contributions to the AOS. —Hans Bachor AOS President 5 AOS News Volume 21 Number 4 2007 AOS Executive PRESIDENT Hans-A Bachor ARC Centre of Excellence for QuantumAtom Optics, Building 38 The Australian National University, Canberra ACT 0200 Tel: 02 6125 2811 Fax: 02 6125 0741 hans.bachor@anu.edu.au Min Gu Faculty of Engineering and Industrial Sciences, Swinburne Univ. of Technology, PO Box 218 Hawthorne VIC 3122 Tel (03) 9214 8776 Fax: (03) 9214 5435 mgu@swin.edu.au Judith Dawes Division of ICS Macquarie University, Sydney NSW 2109 Tel: (02) 9850 8903 Fax: (02) 9850 8983 judith@ics.mq.edu.au VICE-PRESIDENT Ben Eggleton CUDOS School of Physics, University of Sydney Sydney NSW 2006 Tel: 0401 055 494 Fax: (02) 9351-7726 egg@physics.usyd.edu.au John Love Optical Sciences Centre, Research School of Physical Sciences and Engineering The Australian National University Canberra ACT 0200 Tel: (02) 6249 4691 Fax: (02) 6279 8588 jd1124@rsphysse.anu.edu.au Ann Roberts School of Physics, University of Melbourne VIC 3010 Tel: (03) 8344 5038 Fax: (03) 9439 4912 a.roberts @physics.unimelb.edu.au SECRETARY John Holdsworth, School of Mathematical and Physical Sciences, University of Newcastle, Callaghan 2308 NSW Australia Tel: (02) 4921 5436 Fax: (02) 4921 6907 John.Holdsworth@newcastle.edu.au Halina Rubinsztein-Dunlop Department of Physics, University of Queensland, St Lucia, QLD 4072 Tel: (07) 3365 3139 Fax: (07) 3365 1242 halina@kelvin.physics.uq.oz.au Ken Baldwin Laser Physics Centre ANU, RSPSE Canberra ACT 0200 Tel. (02) 6125 4702 Fax. (02) 6125 2452 kenneth.baldwin@anu.edu.au John Harvey Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand Tel: (+64 9) 373 7599 X88831 Fax: (+64 9) 373 7445 j.harvey@auckland.ac.nz OSA (Optical Society of America) SPIE (International Society for Optical Engineering) HONORARY TREASURER Stephen Collins Optical Technology Research Lab Victoria University PO Box 14428, Melbourne, VIC 8001 Tel: (03) 9919 4283 Fax: (03) 9919 4698 stephen.collins@vu.edu.au PAST PRESIDENT Murray Hamilton Department of Physics, University of Adelaide, Adelaide, SA 5005 Tel: (08) 8303 3994 Fax: (08) 8303 4380 murray.hamilton@adelaide.edu.au 6 AOS Councillors Affiliates Corporate Members ARC CoE for Quantum-Atom Optics Australian Fibre Works Bandwidth Foundry Bitline System Coherent Scientific CUDOS Francis Lord Optics (Avtronics) Lambda Scientific Laserex Lastek NewSpec Optiscan Photon Engineering Raymax Applications Warsash Scientific Wavelab Scientific AOS News Volume 21 Number 4 2007 Editor’s Intro I t has been more than 6 years ago since I last put a magazine together. It was the magazine for our Students’ Union, back in Belgium. Joyful times, spending whole nights in the office after the deadline had lapsed! During my time as an editor there, one of our professors predicted in an interview that we would always be doing this kind of professional society work. Little did we know he was going to be so right... It was during and after the last annual meeting of the AOS, that I started thinking I could make a worthwile contribution to the Australian Optical Society. I had no idea however that the society had been looking for a new editor for quite some time already. So, I was a little surprised indeed to see myself bombarded so quickly to be the new editor. I guess I must have said a bit too much after that AGM. Nevertheless, I am still very excited about taking over from Murray Hamilton, as editor of AOS News. He has been of great support, by the way, during this handover period, and I could not thank him enough for this. You will probably have noticed a few changes in this newsletter. I can only hope you appreciate them, but I am open to suggestions and comments of course. My intention is to change even more as time goes on, so the style of this newsletter might change a bit still in the upcoming issues. I sincerely hope I can count on your continued support, including contributed articles, conference and workshop announcements, suggestions for future themes (see below) for this newsletter as well as feedback and commsdents. Call for Papers: Astro-Photonics One of the first new features we would like to try out is the idea of Themed Issues. The next issue for example (March 2008) will be dedicated to Astro–Photonics, following up on a very succesful workshop that was held in November 2007 at the University of Sydney (http://www.cudos.org.au/cudos/ meetings/Astrophotonics.php). So with this, I am solliciting article contributions that could bring the two communities – Astronomy and Photonics – closer together. If you have suggestions for other themes, please feel free to contact me, or any of the members of the AOS Editorial Board. —Michaël Roelens Editor Group picture of the participants of the first Astro-Photonics workshop at the School of Physics, University of Sydney, November 2007. 7 AOS News Volume 21 Number 4 2007 Make The Most of Your Connection The Optical Society of America is your inside track to the optics and photonics community and your link to an international network of more than 12,000 optical scientists, engineers, and technicians in some 50 countries. This connection, combined with OSA’s strong programs and services, makes OSA membership a valuable resource for you. Join now! • • • Connect to Colleagues • Employment and Career Services • Technical groups Monthly magazine, Optics & Photonics News • • • • Connect to Technical Information Technical exhibits Affiliation with the American Institute of Physics (AIP) Electronic products and services Connect to Savings and Value • • Technical books Peer-reviewed journals, incl:JOSA AJOSA BOptics LettersApplied OpticsJournal of Lightwave TechOSA Translation journals • • • Major conferences and specialised topical meetings Reduced meeting registration fees (CLEO, OFC, and others) As an OSA member, you are also a member of AIP. You’ll receive the monthly magazine, Physics Today, plus discounts on other AIP publications Substantial discounts on journal subscriptions and publications Join up to 5 OSA technical groups and 2 application areas, free Membership discount to AOS members Optical Society of America FAX: +1 202 416-6120 WEB: http://www.osa.org 2010 Massachusetts Avenue, NW, Washington, DC 20036 USA 8 AOS News Volume 21 Number 4 2007 SPIE was formed in 1955 as the Society for Photo-optical Instrumentation Engineers, and has been dedicated to providing the best possible service to the optical engineering community. SPIE is an international technical society dedicated to promoting the engineering and scientific applications of optical, photonic, imaging and optoelectronic technologies through its education and communications programs, meetings and publications. SPIE offers International Networking Today SPIE is the largest international professional engineering society serving the practicing engineer and scientist in the field of optics and photonics. The Society serves the global technical and business communities, with over 14,000 individual, 320 corporate, and 3,000 technical group members in more than 75 countries worldwide. Advance professionally through networking and visibility among your peers. Learn from others and gain access to the voices, ideas, and the energy of a global community. Meetings Among the many services the Society offers are the sponsorship, planning, and execution of technical conferences, product exhibitions, and symposia. SPIE’s technical meetings and symposia are internationallyacclaimed gatherings of engineers and scientists working in optics, optoelectronics, and many related fields. They take place in large and small venues, from specialised topics to cross-disciplinary information exchanges, complete with extensive programs including short courses, workshops, and other special activities. Publications A major activity of SPIE is the publication and distribution of archival professional journals, full-manuscript conference proceedings, newsletters, and optics-related texts and monographs. SPIE publications deliver timely, high-quality technical information to the optics, imaging, and photonics communities worldwide. Membership includes a subscription to OE Reports, a monthly newspaper that provides news and commentary on cutting-edge technology. and More In addition, SPIE provides numerous services to its members, including on-line electronic databases, electronic bulletin board and networking services, and employment assistance. To further serve the public good, the Society sponsors a number of awards, scholarships, and educational grants every year, and publishes a comprehensive catalogue of educational resources in the optics field, Optics Education. To join SPIE: Complete the online membership form at www.spie.org/membership_form.html, print and fax it to SPIE along with a copy of your AOS dues receipt. (Be sure to indicate that you are eligible for the US$20 discount as an AOS member). Any queries can be directed to Mr Paul Giusts at membership@spie.org SPIE International Headquarters Tel: +1 360 676 3290 Fax: +1 360 647 1445 email: spie@spie.org web: http://spie.org PO Box 10, Bellingham WA 98227-0010 USA 9 AOS News Volume 21 Number 4 2007 Interferometry at a low price? Yes that’s right, Lambda Scientific has an excellent Michelson Interferometer to help provide the necessary education in light interference. With optional accessories to further boost the depth of education and a solid structure for consistent results, the LEOI-20 will really be an excellent tool for any interference education. LEOI-20 Michelson Interferometer Ask for the Promotion Price!! Flatness of Beam Splitter and Compensator 0.05Ȝ Travel of Movable Mirror 1.25mm (travel of micrometer: 25mm) Minimum Travel Reading 0.0005mm Sodium-Tungsten Lamp (optional) Sodium/10W and Tungsten/15W He-Ne Laser 0.7-1mW@632.8nm Wavelength Measurement Accuracy Relative error of 2% for 100 fringes Air Chamber with Gauge (optional) Chamber length of 80mm, gauge: 0 ~ 40Kpa Overall Dimensions 350×350×285mm Weight of Main Frame Approx. 17kg Contact us for further info www.lambdasci.com 10 Phone: +61 8 8267 2686 Fax: +61 8 8267 2689 E-mail: sales@lambdasci.com AOS News Volume 21 Number 4 2007 Novel, narrow linewidth fibre laser opens new opportunities Nemanja Jovanovic Fibre lasers have significantly advanced over the last 15 years and have become an important and mature technology. High slope efficiencies, power scalability, broad wavelength tunability, diffraction limited beam qualities at high power and cheap laser diode pump sources make fiber lasers well suited for a range of applications. However for airborne applications such as LIDAR or countermeasure systems, there are elevated demands on stability and robustness, consequently the use of conventional external bulk optics to control the fibre lasers wavelength and linewidth is unviable. F iber Bragg gratings (FBGs) written using 1 or 2 photon UV processes can be utilized to generate a narrowband laser output (~ 0.25 -1 nm), but because they require the fibre to be photosensitive, they can not be easily written into non-photosensitive rare-earth doped laser fibre. Typically gratings are written into standard photosensitive fibers without rare-earth dopants and spliced onto the fiber containing the active core. This procedure produces an additional step in the fabrication process, introduces an additional loss to both the pump and laser light, and diminishes the overall robustness of the laser. Recently, point-by-point (PbP) inscribed fibre Bragg gratings (FBG) were written directly into the active core of a ytterbium doped double clad silica fibre laser in order to overcome these issues. The point-by-point technique refers to the use of a single tightly focused femtosecond pulse into the core of an optical fibre in order to modify the refractive index of the core locally and hence create one period of the grating. By translating the optical fibre synchronized with the repetition rate of the femtosecond laser it is possible to build up a structure consisting of many periods that will inevitably have a stop band at the required wavelength. Initial experiments demonstrated up to 5 W of CW output power at the predetermined 1080 nm wavelength, in a very narrow linewidth of only 15 pm (3.87 GHz) which is 17 times narrower then systems exploiting interference FBGs [1]. The very narrow linewidth feature offered by these PbP FBGs makes efficient frequency doubling into the visible spectrum possible since the bandwidth is smaller then the maximum phase The very narrow linewidth “feature offered by these PbP FBGs makes efficient frequency doubling into the visible spectrum possible. ” Nemanja Jovanovic is with CUDOS, MQ Photonics, Department of Physics, Macquarie University, North Ryde, NSW 2109, Australia. E-Mail: njovanov@ics.mq.edu.au Fig. 1. Fibre laser in operation. 11 AOS News Volume 21 Number 4 2007 12 AOS News Volume 21 Number 4 2007 Cooling fan for temperature stabilization Pigtail Rare-earth doped fibre Pump laser diode Splice PbP inscribed FBG Fig. 2. Schematic of a very simple fibre laser geometry exploiting PbP FBGs to narrow the linewidth and control the wavelength. matching bandwidth of the periodically poled ferroelectric crystals. The fibre laser showed great stability in terms of output power, wavelength drift and linewidth fluctuations over a 4 hour period of test which was further improved by the implementation of passive temperature stabilization of the FBG. There was no observable degradation to the laser performance and hence the FBG after several four hour experiments, which may have resulted from the fact that the FBG may have been annealed by the high intracore irradiances. The potential of this fibre laser variant was further tested in a high power scaling experiment where it was observed, that the fibre laser offered a relatively narrow linewidth of 260 pm (64.8 GHz) at a pump limited output power of 103 W at 1097 nm [2]. In order to exploit the narrow linewidth feature of the laser, the output of the fibre laser was single pass frequency doubled using a MgO:PPLN piece which was 11 mm long. The conversion efficiency was 10 % which was consistent with values reported in the literature but the output rolled off above 2.1 W of green light generated due to the linewidth of the laser being slightly broader than the maximum phase matching bandwidth of the MgO:PPLN crystal. Although the linewidth broadening was partly due to spatial hole burning, the majority of the broadening was due to thermal chirping of the FBG induced by the high intracore irradiances. Therefore, by either encoding a counter chirp during the writing process, cooling the grating to a greater extent or by creating a master oscillator power amplifier (MOPA) arrangement in the fibre form (FOPA), it would be possible to retain the very narrow linewidth features of the fibre laser at high power levels which would aid in generating the maximum amount of visible radiation. The advantages of using such a system for applications requiring a greater level of robustness include the following: • a simple setup including a pump laser diode, a roll of laser fibre, which if arranged correctly could be spliced directly to the pump diodes pigtail and a PbP inscribed FBG as shown in Fig. 2, • a very narrow linewidth of the fiber laser which can be exploited to achieve efficient frequency doubling into the visible part of the spectrum, • easy wavelength selectivity that is achieved by simply rewriting the FBG at the new target wavelength, and • simple passive temperature stabilization of the laser by cooling the grating. The combination of PbP FBGs and fibre lasers promises to enable new applications that have previously been out of reach. References [1] N. Jovanovic, A. Fuerbach, G.D. Marshall, M.J. Withford, and S.D. Jackson, “Stable high-power continuous-wave Yb3+ - doped silica fiber laser utilizing a point-by-point inscribed fiber Bragg grating,” Opt. Lett. 32, 1486 (2007). [2] N. Jovanovic, M. Aslund, A. Fuerbach, S. D. Jackson, G.D. Marshall, M.J. Withford, “Narrow Linewidth, 100 W CW Yb3+-Doped Silica Fiber Laser with a Point-by-Point Bragg Grating Inscribed Directly into the Active Core,” Opt. Lett. 32, 2804 (2007). 13 AOS News Volume 21 Number 4 2007 Vbragg Pty Ltd 2 Kannan Boulevard Braybrook, VIC 3019 Australia Tel: (03) 9312 0674 Fax: (03) 9312 657 Email inquiries@vbragg.com.au Web: www.vbragg.com.au OPTICAL COMMUNICATION & SENSOR COMPONENTS SM 50/50 1550 nm couplers $21* Other wavelengths available Variable attenuators $240 980/1550 WDM couplers $58* Other configurations available A wide range of fibre Bragg grating interrogators 8 Ch 100GHz WDM $980 Other configurations available Plug-in fixed attenuator $26* Single stage isolators $124 FBG-based temperature, strain, displacement, pressure sensors. 3 port circulator $390 4 port circulator $790 SM dual window couplers $32* 1x4 Planar circuit splitters $110 Other configurations available Complete FBG-based sensor monitoring systems Mention this AOS add and receive 10% off the quoted price. For further information on these and other products, visit our website at www.vbragg.com.au. * Minimum order of two. Contact us for 1 off prices. Prices are subject to change without notice. 14 AOS News Volume 21 Number 4 2007 Metamaterials: Challenging the fundamentals of nature Yuri Kivshar, Ilya Shadrivov, David Powell, and Steven Morrison Summary Recent experimental results have shown a possibility of creating novel types of microstructured materials that demonstrate many counterintuitive properties including negative refraction. In particular, the composite materials created by arrays of wires and split-ring resonators can possess a negative real part of magnetic permeability and dielectric permittivity for microwaves. These materials are referred to as left-handed metamaterials. They were mentioned first as a theoretical curiosity about 35 years ago, but recent experimental demonstrations of such newlyengineered materials have involved the development of new fundamental physical concepts and ideas. Members of the Nonlinear Physics Centre of the Australian National University have pioneered theoretical and experimental studies of such materials in Australia, and they recently demonstrated and studied the first tunable nonlinear metamaterial. I t is well known that a material’s response to the applied electromagnetic radiation can be characterized by two electromagnetic parameters, magnetic permeability and electric permittivity. These two physical characteristics are combined in a product to define the square of the refractive index, which measures how fast the material transmits light and how light is bent on entering the material — the higher the refractive index, the slower the propagation and the stronger the deflection. Metamaterials are artificial composite structures which exhibit electromagnetic properties inaccessible for natural materials. As a matter of fact, in a special type of metamaterials, known as left-handed materials, both permeability and permittivity become simultaneously negative; they were first studied theoretically as a curiosity about 35 years ago [1] but the recent fabrication and experimental studies of artificial composites with left-handed properties for microwave and even optical wavelengths gave a new twist to this concept. One of the first unusual properties predicted for left-handed materials is negative refraction, i.e. metamaterials bend waves in the wrong way. This property allows making very unusual optical components, such as flat lenses. Moreover, the metamaterial are remarkable for their ability to control evanescent waves, or near fields, providing possibilities for building super-lenses without diffraction resolution limit. In general, all electromagnetic phenomena are different in metamaterials as compared to natural dielectrics, thus having a potential for a broad range of metamaterial applications. In a left-handed material the Poynting vector 15 AOS News Volume 21 Number 4 2007 NewSpec 16 AOS News Volume 21 Number 4 2007 the negative refractive index in Snell’s law provides the correct description of refraction at the interface between leftand right-handed materials. There are no such materials in nature. However, a few years ago David Smith and his team in San Diego demonstrated [2] the first artificially fabricated metamaterial with the peculiar property of left-handed materials: it bends electromagnetic waves in the opposite direction to normal materials. A typical metamaterial has a structure composed of copper elements that appears as a continuous Fig. 1. Dr. Ilya Shadrivov, Dr. David Powell, and PhD student material to electromagnetic waves over Steven Morrison in a new microwave laboratory with the first the microwave range of frequencies, sample of a microwave composite metamaterial. exhibits a simultaneously negative perof a wave is anti-parallel to the wave vector and, mittivity and negative permeability, and represents therefore, the basic feature of light is reversed that an example of Veselago’s left-handed materials. is light propagates in the opposite direction to the energy flow. This leads to some very interesting effects such as the reversal of the Doppler shift Metamaterials in Canberra for radiation, and the reversal of the direction of Cherenkov radiation. In addition, one of the most The studies of unusual properties of the lefthanded metamaterials have been initiated in the basic principles of optics, Snell’s law, is “reversed” Nonlinear Physics Centre several years ago, being at the interface of a left-handed medium with a the first in Australia. In particular, our group sugnormal right-handed material, so that the elecgested the concept of tunable nonlinear materials tromagnetic waves experience negative refraction. [3] through accurate microscopic derivation of That is, light that enters a left-handed material the effective magnetic permeability and dielectric from a right-handed medium will undergo refracpermittivity in the case of nonlinear Kerr-like tion, but opposite to that usually observed. The dielectric. It was demonstrated that the effective reversal comes about because a left-handed matemagnetic permeability in such structures depends rial has a refractive index that is negative; use of on the intensity of the macroscopic magnetic field in a nontrivial hysteresis-type way, allowing changes in the material properties from left- to right-handed and back. This effect can be treated as the second-order phase transition in the transmission properties induced by an external field, and it has been now verified experimentally [4]. Very recently, our metamaterial group at Nonlinear Physics Centre (see Fig. 1) fabricated the first mechanically tunable composite structure that was characterized and tested in collaboration with Dr. Fig. 2. The first mechanically tunable metamaterials operating at microwaves, with possibility of superlattice arrangement of the splitG.N. Milford from the Australian ring resonator board layers [5]. Defence Force Academy, with the 17 AOS News Volume 21 Number 4 2007 first experimental results have been published a few months ago [5]. The experiments have been conducted on the free-space scattering properties of a microwave metamaterial created by layers of printed circuit boards with split-ring resonators and wires arranged to form a superlattice. First, we studied both transmission and reflection of electromagnetic waves from a regular structure with different spacing between the layers. Then, we arranged the boards in different superlattice configurations, and analyzed the dual resonance Fig. 3. Structure of nonlinear tunable metamaterial. behaviour of the metamaterial. In contrast with earlier studies, the of the resonator. The diode allows the split-ring resonance splitting is achieved in a material with resonator to be tuned by an applied dc voltage or identical resonators but with a superlattice arby a high power signal. In our recent paper [8], rangement of the split-ring resonator board layers, we demonstrated different tuning regimes with as shown in the photo of Fig. 2. and without an inductive coil in parallel with the In particular, by varying periodicity in one varactor. This coil was shown to change the sign dimension, we have shown that the reflection and of the nonlinearity and eliminates the memory transmission resonances can be shifted by more effect caused by charge accumulation across the than 15% of the resonant frequency, allowing for varactor. In addition, at higher powers the nonmechanical tuning of the electromagnetic proplinear response of the split-ring resonator becomes erties of metamaterials. We have demonstrated multi-valued, paving a way for creating nonlinear that using superlattice structure for arranging the metamaterials. metamaterial constituents, one may obtain several Tunable nonlinear metamaterials have been reflection and transmission resonances. fabricated in Canberra by placing varactors in each of the split-ring resonators of the structures Tunable nonlinear (see Fig. 3) . First of all, we measured a very metamaterials 18 -30 3.11GHz 3.27 GHz 3.3 GHZ -40 |S21| (dB) The first step towards creating tunable nonlinear metamaterials was to study, both theoretically and experimentally, the dynamic tunability of the magnetic resonance of a single nonlinear split-ring resonator. Split-ring resonators are the key building blocks for metamaterials. Recent studies have demonstrated how to dynamically tune or modulate the electromagnetic properties of metamaterials, and the fabrication of nonlinear split-ring resonators has been demonstrated by placing a varactor diode [6] or a photosensitive semiconductor [7] within the gap -50 -60 -70 -40 -30 -20 VNA output (dBm) -10 0 Fig. 4. Measured nonlinearity-induced tunability of the transmission coefficient of a metamaterial by nearly 30 dB [4]. AOS News Volume 21 Number 4 2007 pronounced shift of the resonance itself, and then measured the transmission through the nonlinear metamaterial with wires and split-ring resonators for different power levels. When the frequency is at the left edge of the resonance, we observe an enhanced transparency of the metamaterial. However, when we increase the power, the frequency is shifted to the region of positive susceptibility, and the material becomes opaque. As a result, we observe strong suppression of the beam transmission by almost 30 dB (see Fig. 4), in a qualitative agreement with our earlier theoretical predictions [3]. Other unusual properties of metamaterials Recently, we have revealed a novel and highly nontrivial property of left-handed metamaterials with negative refraction: a one-dimensional periodic structure containing layers made of a left-handed metamaterial can trap light in three dimensions due to the existence of a complete photonic band gap [9]. This finding is in a sharp contrast with the fundamental concepts of the conventional physics of photonic crystals where complicated structures “Left-handed metamaterials possess unique properties which set them apart from any material available in nature. ” with two- and three-dimensional periodicity are required. We believe that our results may suggest novel directions for the future applications of metamaterials for microwaves, Terahertz frequencies, and visible light as fabrication technologies become available. In collaboration with Lindsay Botten and his colleagues [10], we studied wave propagation in disordered, mixed metamaterials and revealed yet another fascinating feature of these materials. We found that the introduction of metamaterials substantially suppresses Anderson localization. At long wavelengths, the localization length in mixed stacks is orders of magnitude larger than for normal structures--proportional to the sixth power of the wavelength--in contrast to the usual quadratic wavelength dependence of normal systems. Suppression of localization is also exemplified in longwavelength resonances which largely disappear when left-handed materials are introduced [10]. More recently, we predicted that periodic structures with metamaterials may possess nontrivial optical Bloch oscillations [11]. In particular, the most intriguing properties are demonstrated by the layered structures with left-handed metamaterials and zero average refractive index where the layer thickness varies linearly across the structure. We have predicted that such structure should demonstrate a new type of the Bloch oscillations associated with coupled surface waves excited at the interfaces between the layers with left-handed material and conventional dielectric. Concluding remarks The research on left-handed materials has recently emerged as a new area of physics and engineering and is now attracting rapidly growing interest worldwide. Due to their ability to respond to electromagnetic radiation in a previously unattainable way, artificially fabricated left-handed metamaterials with negative refraction hold a real promise of underpinning the enabling technology for manipulating optical and microwave fields at the sub-wavelength (below diffraction limit) nano-meter scales. The possibility of such manipulation is among the most important scientific and technological challenges that span several scientific and engineering areas. Most of the fundamental problems in the field of left-handed materials have not been solved yet. Left-handed metamaterials possess unique properties which set them apart from any material available in nature. Apart from novel possibilities they offer for practical applications and devices, metamaterials display unexplored and intriguing properties that often challenge fundamentals of physics. Far from being specific to the particular area of research, the novel theoretical and experimental framework that will be developed in this field could benefit many 19 AOS News Volume 21 Number 4 2007 www.oemarket.com Opto-Electronics Fiber Optics Fiber Connection Test Equipment 10Gbps Surface Mount PIN/TIA detector module – InGaAs PIN integrated with low noise TIA, 1280nm to 1580nm, 10.7Gbps, surface mount MSA package 10GHz PIN photodetector – 10GHz 3dB bandwidth, InGaAs/InP planar photodiode, 1100nm to 1650nm operating wavelength 1GHz ~ 2.5GHz photodiode – 1G~2.5GHz PIN, fibre pigtailed, low cost Optical power monitor – pigtailed photodiode packaged with tap coupler, low cost optical power monitoring, 2GHz 3dB bandwidth 2.5Gbps receiver modules – multi-rate clock and data recovery circuits (four different bit rates), APD or PIN photodetector, high sensitivity, analog optical input level monitor, +5V single power supply, DIP metal package DFB/FP laser diodes – coaxial pigtailed or butterfly package, 1310nm, 1490nm and 1550nm, integrated TEC and PD monitor, high output power, high modulation bandwidth, applications in analog and digital optical links. Un-cooled SLED diodes – 1310nm or 1550nm, >50nm bandwidth CWDM DFB Laser Diodes – ITU grid CWDM wavelengths Optical transceivers for passive optical networks – EPON transceivers, 1.25Gbps, burst-mode, bi-directional, 1310/1490nm WDM. Multimode transceivers – 1.25Gbps, 62.5/125Pm multimode fiber links 155Mbps 1x9 transceivers – 1310nm, 2km, 15km or 40km reach SFP Transceivers – 1.25Gbps, 1550Mbps, bi-directional, 550m to 120km reach Optical couplers – single/multi-mode, wideband, multi-band, miniature, PM, star/tree couplers, special wavelengths (460nm~ 1625nm). WDM couplers – low cost high quality, 1310, 980, 1480 or 1064nm WDM couplers, multimode WDM couplers Triplexer WDM Couplers for FTTH – 1310, 1490 and 1550nm mux/demux Customized WDM devices – red band splitter, 1310nm combiner, etc. Planar Lightwave Circuits (PLC) Splitters Optical attenuators – fixed attenuators, variable attenuators (all fiber device, collimator type or low cost adapter type), benchtop VOA instrument, handheld VOA instrument Optical switches – opto-mechanical switches, 1x1, 1x2, 2x2,1x4,1x8, 1x16 Polarization Maintaining Components – patch cords (980, 1064, 1310, 1550nm, etc.), PM couplers (filter based), PM WDM couplers (various center wavelengths), PM isolators, PM circulators, polarizers, etc. Customized PM Components – to meet your special requirement. Bitline System Pty. Ltd. Fiber Optical Products for the Industry 20 Tel: 02-9597 2689 Fax: 02-9597 1959 Web: www.oemarket.com Email: sales@oemarket.com AOS News Volume 21 Number 4 2007 areas of physics where the study of the properties of composite materials and their electromagnetic response is required. Acknowledgements We thank many of our colleagues for collaboration and useful discussions, in particular Lindsay Botten, Costas Soukoulis, David Smith, and Alex Kozyrev. This research has been supported by the Australian Research Council. Yuri Kivshar (ysk124@rsphysse.anu.edu. au), Ilya Shadrivov, David Powell, and Steven Morrison are with the Nonlinear Physics Centre, at the Research School of Physical Sciences, and Engineering, The Australian National University, Canberra. References [1] See, e.g., C. Soukoulis, Opt. Photonics News 17, 18 (2006), and references therein. [2] R.A. Shelby, D.R. Smith, and S. Schultz, Science 292, 77 (2001). [3] A.A. Zharov, I.V. Shadrivov, and Yu.S. Kivshar, Phys. Rev. Lett. 91, 037401 (2003). [4] I.V. Shadrivov, A. Kozyrev, D.W. van der Weide, and Yu.S. Kivshar, “Tunable nonlinear metamaterials” submitted for publication (2007) [5] I.V. Shadrivov, D.A. Powell, S.K. Morrison, Yu.S. Kivshar, G.N. Milford, Appl. Phys. Lett. 90, 201919 (2007) [6] I.V. Shadrivov, S.K. Morrison, and Yu.S. Kivshar, Opt. Express 14, 9344 (2006). [7] A. Degiron, J. J. Mock, and D. R. Smith, Opt. Express 15, 1115 (2007). [8] D.A. Powell, I.V. Shadrivov, Yu.S. Kivshar, and M.V. Gorkunov, Appl. Phys. Lett. 91, 144107 (2007). [9] I.V. Shadrivov, A.A. Sukhorukov, and Yu.S. Kivshar, Phys. Rev. Lett. 95, 193903 (2005). [10]A.A. Asatryan, L.C. Botten, M.A. Byrne, V.D. Freilikher, SA. Gredeskul, I.V. Shadrivov, R.C. McPhedran, and Yu.S. Kivshar, Phys. Rev. Lett. 99, 193902 (2007). [11]A.R. Davoyan, I.V. Shadrivov, A.A. Sukhorukov, and Yu.S. Kivshar, “Optical Bloch oscillations in periodic structures with metamaterials”, submitted to Appl. Phys. Lett. (2007). Conference Watch OFC/NFOEC 2008 San Diego, CA http://www.ofcnfoec.org/ Focus on Microscopy 2008 Osaka, Awaji Island, Japan http://www.FocusOnMicroscopy.org International Conference on Optical Fibre Sensors Perth OFS-19 http://obel.ee.uwa.edu.au/OFS-19/ CLEO/QELS 2008 San Jose, (paper submission deadline 3 Dec 2007) California, USA http://www.cleoconference.org SPIE Astronomical Telescopes and Instrumentation Marseille, France 2008 http://www.spie.org 21st ICO Congress Sydney (incorporating AOS conference) http://www.iceaustralia.com/ICO2008 OECC/ACOFT 2008 Sydney http://www.iceaustralia.com/OECC_ACOFT2008 24-28 February 2008 13-16 April, 2008 14-18 April, 2008 4 - 9 May 2008 23 - 28 June 2008 7 - 10 July 2008 7 - 10 July 2008 21 AOS News Volume 21 Number 4 2007 Single Photon Counting Module SPCM now RoHS compliant PerkinElmer Optoelectronics recently announced that its SPCM-AQRH Single Photon Counting Module is now fully RoHS compliant, in accordance with the European Union Directive 2002/95EEC, which restricts the use of certain hazardous substances in electrical and electronic equipment. Applications include: - LIDAR - Photon correlation - spectroscopy - Astronomical observation - Optical range finding - Adaptive optics - Ultra sensitive fluorescence - Particle sizing - Quantum Atom Optics Photon Detection Efficiency (PD) vs. Wavelength PerkinElmer's SPCM-AQRH series of selfcontained modules detect single photons of light over the 400 nm to 1060 nm wavelength range. The SPCM-AQRH uses a unique silicon avalanche photodiode (APD) to achieve a peak photon detection efficiency of more than 65% at 650 nm over an active area of 180 µm. (See figure left). With dark counts as low as 25 counts per second, and mean count rates as high as 5x106 counts per second, there is a SPCM-ARQH model to suit every users 22 Sydney PO Box 1685 Strawberry Hills NSW 2012 Tel: (02) 9319 0122 Fax: (02) 9318 2192 sales@warsash.com.au www.warsash.com.au AOS News Volume 21 Number 4 2007 Sydney PO Box 1685 Strawberry Hills NSW 2012 Tel: (02) 9319 0122 Fax: (02) 9318 2192 sales@warsash.com.au www.warsash.com.au 23 AOS News Volume 21 Number 4 2007 24 AOS News Volume 21 Number 4 2007 OSA Annual Student Chapter Leadership Meeting San Jose, California Cameron Smith The University of Sydney is host to one of many OSA (Optical Society of America) Student Chapters throughout the world. These chapters are funded by the OSA to provide support for the students of local research groups to network, collaborate and undertake outreach activities aimed at the broader community. The OSA Student Chapter at the University of Sydney consists of three groups: CUDOS (the Centre for Ultrahighbandwidth Devices for Optical Systems), Electrical Engineering, and OFTC (Optical Fibre Technology Centre). E ach year, the OSA is host to a meeting for all the leaders of each student chapter, providing financial assistance for travel and expenses to attend. The aim of these meetings is to encourage networking and support for the leadership roles in these chapters, holding workshops, motivational lectures, gatherings, activities and nightly festivities. These meetings are also held in conjunction with the prestigious yearly FiO (Frontiers in Optics) conference, which the students can attend to meet and hear world class speakers and researchers. This year in October, the OSA held its annual student chapter meeting in San Jose, California, USA. First thing, bright and early on a Sunday morning, everyone met up for a breakfast of bagels before loading up on a bus and heading to the campus of Stanford University. There, we each received trendy panama hats, red shirts that read, “If this shirt looks blue, you are going too fast,” and posed for a group photo before having a seat in one of the electrical engineering lecture theatres there. After taking care of formalities and housekeeping, outlining issues that we all should be on the lookout for that day, we heard an enlightening keynote speech from Professor Alan Willner about the benefits of leading and serving in the OSA. Indeed, his case was compelling considering that, aside from a free trip to the USA, leading an OSA student chapter is voluntary work. On that high note, the following lunch allowed people to network and socialise, not only with OSA student chapter leaders but also members from various relevant research groups of Stanford University. From Peru to Germany, India to Israel, Ukraine to Singa- pore, United Kingdom to Brazil, it was a remarkable experience to interact with so many people from such vastly different locations and find out what they did and how they went about it. definition After lunch we returned to the lecture theatre where several student chapters gave presentations on outreach activities they had undertaken over the past year. Special kudos should be given to the Australian National University student chapter for the presentation on their adventure: Optics in the Outback, which was well received. Who would have thought outreach could reach out so far! Following that we had a meaningful discussion on various topics pertaining to the management of the student chapters. These topics ranged from ways of motivating our student chapters to succeed and make things happen, which can often be a problem when the students of a research group are frequently caught chasing deadlines and reviews, and suggestions for outreach activities. Certainly many things were learnt and shared by all at the conclusion of a long yet fruitful day. The remainder of the trip centred about the FiO conference, which was attended along with the friends and acquaintances made at the student chapter leaders meeting. Of course, each day was finished off with a night on the town for extended networking and socialising. Ah, the things we do for our chapters! Cameron Smith is the president of the OSA Student Chapter at the University of Sydney. (csmith@physics.usyd.edu.au) 25 AOS News Volume 21 Number 4 2007 Diode Pumped Solid State (DPSS) Laser Systems DC Series - Deep UV to IR - Compact, Rugged Design Powers up to 4W TEM00 Beam with M2 < 1.1 Pulse Rates from Single Shot to 100 kHz IR, Green, UV, and Deep UV Wavelengths Available RS232 Computer Control Patented Harmonic Generation Technology External TTL Triggering Choice of Nd:YLF, Nd:YAG, and Nd:YVO4 Based Lasers DS Series - Deep UV to IR - Powers up to 15W TEM00 Beam with M2 < 1.1 Pulse-to-Pulse Instability <1% Pulse Rates from Single Shot to 100 kHz IR, Green, UV, and Deep UV Wavelengths Available RS232 Computer Control Patented Harmonic Generation Technology External TTL Triggering Choice of Nd:YLF, Nd:YAG, and Nd:YVO4 Based Lasers DM Series - 532nm Nd:YLF - 26 Highest Energy Per Pulse (up to 50mJ @ 1kHz) High Stability (<1% RMS) Compact, Rugged, Industrial Design Uniform Beam Profile Long Diode Lifetime (10,000 hours) Low Cost of Ownership Pulse Rate from Single Shot to 10kHz RS-232 Interface & Computer Control Software Included Double Pulse option for PIV applications Sydney PO Box 1685 Strawberry Hills NSW 2012 Tel: (02) 9319 0122 Fax: (02) 9318 2192 sales@warsash.com.au www.warsash.com.au AOS News Volume 21 Number 4 2007 Park Systems AFM / NSOM Now Available in Australia & NZ Park Systems (formerly PSIA) Technology Leader in Nanoscale Measurements Looking for advanced, affordable Atomic Force Microscopes (AFM) & metrological systems to generate accurate nanoscale measurements? Park Systems has what you need. Our AFM solutions meet the most rigorous scientific research and nano-manufacturing process control requirements in biological, polymer, and material sciences. Park Systems' independent, orthogonal XY&Z flexure scanners overcome non-linearities associated with conventional piezo tube based AFMs, and a fast Z-servo response enables True Non-Contact mode AFM imaging. True Non-Contact AFM (NC-AFM) can image deep trenches and high walls, reduces tip-wear, eliminates sample damage and improves overall AFM resolution. Scientists and engineers have relied on Park Systems quality AFM's for more than 10 years. Visit our image gallery at www.parkafm.com Sydney PO Box 1685 Strawberry Hills NSW 2012 Tel: (02) 9319 0122 Fax: (02) 9318 2192 sales@warsash.com.au www.warsash.com.au 27 CUDOS AOS News Volume 21 Number 4 2007 PECS VIII, 2009 April 5 - 9, 2009 sees the Photonic and Electromagnetic Crystal Structures conference come to Sydney, Australia. Continuing the tradition of PECS VII held in Monterey CA 2007 and PECS VI in Grete 2005, the 8th conference will review significant advances in the field and discuss future directions of photonic crystal research. The program will include talks from leading scientists in the field and poster sessions. With planning already underway PECSVIII promises to be a success. Please register your interest at http:// pecs8.mtci.com.au/ News from CUDOS ARC GRANTS CUDOS members from Sydney, ANU, Swinburne and RMIT were involved in a number of ARC Grants to begin in 2008. Successfull applications include 4 Discovery Projects, 1 Linkage and 1 International Linkage Project, 1 International Linkage Fellowship, and 3 LIEF Grants. AWARDS & RECOGNITION, 2007 Benjamin Eggleton - COSMOS Magazine Bright Spark - Australian Academy of Science Pawsey Medal - ARC Federation Fellow (renewed) Yuri Kivshar - ANU Peter Baume Award - Australian Academy of Science Lyle Medal - ARC Federation Fellow (renewed) Min Gu - Fellow of the Australian Academy of Science - Cheung Kong Distinguished Professor awarded by the Chinese Ministry of Education - Fellow of the Australian Academy of Technological Sciences and Engineering David Moss - Fellow of the Optical Society of America ICO-21 & OECC/ACOFT 2008 CUDOS is supporting the co-located conferences ICO-21 and OECC/ACOFT at Sydney Convention & Exhibition Centre, 7-10 July 2008. Benjamin Eggleton is Conference Chair of OECC/ACOFT and Chris Walsh is Organising Committee Chair of ICO-21. ICO-21 - The theme of the Congress is “Optics for the 21st Century”. The technical program is wideranging and will capture all aspects of modern optics and photonics. http://www.iceaustralia.com/ico2008/ OECC / ACOFT 2008 - The combined conference JOURNAL EDITORS will address all aspects of optoelectronics and optical Benjamin Eggleton is a new editor of Optics Comcommunications, from waveguide and propagation munications and Martijn de Sterke has recently theory, through components and subsystems to sysbecome Editor in Chief of Optics Express. tems and networks. http://www.iceaustralia.com/oecc_acoft2008/ UNDERGRADUATE WORKSHOP In September 2007 CUDOS invited 31 undergraduates from Australia and New Zealand to a two day CENTRE RENEWAL 2008 marks the beginning of CUDOS II. The Centre workshop on All-Optical Switching. Day one was specially designed to provide the 3rd and 4th yr stuwas successfully renewed, with ARC funding condents with background for the more advanced topics tinuing until the end of 2010. discussed by CUDOS members on the second day. CUDOS and Undergraduate attendees at the All-Optical Switching Workshop, Friday September 28, 2007 28 A vision for the best people. AOS News Volume 21 Number 4 2007 Technology R&D Engineer Carl Zeiss Vision is a worldwide leader in developing eyeglass lens designs, coatings and materials. Through intensive research and development, Carl Zeiss Vision continually creates innovative new products that bring better vision to people in all aspects of their lives - all around the globe. The Carl Zeiss Vision Technology and Process Development Group are world leaders in freeform surfacing of ophthalmic lenses. This newly created position has been created to address an expanding need for improved free form lens technology and methods across the organization. This includes the planning and execution of designed experiments and statistical analysis and reporting of data. The successful candidate will be degree qualified in either Engineering with a focus on mechanical engineering, machining, materials engineering or Physics with a strong focus on materials research. Ability in mathematics including statistics and design of experiments is essential. The role will require a balance of applied theoretical and hands-on work including training and support for technicians. Some travel may be involved. If you wish to be considered for this position please apply via our website www.czvcareers.com.au For more information, please contact Elaine Ehmann on (08) 8392 8226. Applications close 30 November 2007. Carl Zeiss Vision was created in 2005 through the merger of SOLA Optical and the ophthalmic division of Carl Zeiss AG, and today it is a business with over 11,000 people operating in more than 30 countries. Recognised as a global leader in the optical and opto-electronic industries, they are respected for their leading edge solutions that positively impact human life the world over. Product News New Red-Sensitive Fiber Optic Input PMT XS7F007 from Photonis Photonis is excited to introduce a revolutionary new light sensor. Based on a Photomultiplier Tube with a robust multialkali photo-cathode, this sensor provides best-in-class spectral response covering the 300-850 nm wavelength range.With its unique Fiber-Optic input, this sensor is ideal for laser-induced fluorescence applications where superior signal-tonoise is required. The ultra-low-noise high-efficiency power supply and signal amplifier provide both ease of use and stable operation. The PHOTONIS Group, is a global business serving the photo sensor technology needs of world-leading clients in the areas of Industry & Science, Medical Imaging and Night Vision. Uniting under the PHOTONIS brand, the group brings together the people, products and technologies of BURLE, DEP and PHOTONIS. For further information, contact Lastek, Toll Free: Australia 1800 882 215, NZ 0800 441 005 T: +61 8 8443 8668, F: +61 8 8443 8427, email: sales@lastek.com.au, web: www.lastek.com.au 29 AOS News Volume 21 Number 4 2007 Quantum Composers introduces 9520 Series Pulse Generators The model 9520 series heightens the capabilities of pulse generation and digital delay to new levels. Cost effective, yet extremely capable, this instrument provides solutions to generate and synchronize multiple pulses and triggers for a wide variety of applications. The 9520 series provides up to eight fully independent digitally controlled channels with width, delay, rate and amplitude control on each output. For automated test sequencing, all common computer interfaces are available such as RS232, USB, GPIB and Ethernet. Key Features : • 250 ps timing resolution with < 200 ps jitter • Internal rate generator, 10ns period resolution over entire range of instrument • Complete channel and system setup stored in memory - Provides 12 memory storage bins • Remote programmability - All of the 9520 series instruments offer RS232, GPIB, USB and Ethernet • Single cycle pulse by pushbutton or reference trigger - One pulse with each pushbutton, internal, external signal or software command • Advanced Hardware Features : • 820 nm and 1310 nm optical outputs available with ST® connectors Laboratory Light Sources • Optical inputs available with ST connectors We can provide many lights sources for sci• Trigger input per output entific laboratories such as; available Sodium, Mercury, Hydrogen, Xenon, Tungsten-Bromine, Deuterium and so on. With many applications ranging from wavelength measurement to spectral analysis we are sure to have a light source to suit your application! Here are just a few of our light sources: For further information, contact Lastek, Toll Free: Australia 1800 882 215, NZ 0800 441 005 LLE-3 Multiple Discharge Lamp. Consist of T: +61 8 8443 8668, F: +61 8 8443 8427, email: sales@lastek.com.au, web: www.lastek.com.au Laboratory Light Sources Hydrogen, Neon, Helium and Nitrogen. Laboratory Light Sources We can provide many lights sources for scientific laboratories such as; Sodium, Mercury, Hydrogen, Xenon, Tungsten-Bromine, Deuterium and so on. With many applications ranging from wavelength measurement to spectral analysis we are sure to have a light source to suit your application! Here are just a few of our light sources: LLC-7 High Pressure Spherical Xenon Lamp. Irradiates a strong continuos spectra from UV to Visible. LLE-3 Multiple Discharge Lamp. Consist of Hydrogen, Neon, Helium and Nitrogen. LLE-9 High Pressure Mercury Lamp. With high gas pressure more and stronger mercury spectral lines can be obtained. Contact Lambda Scientific for further info. Phone: +61 8 8267 Contact 2686, us for further info Fax: +61 8 8267 2689, E-mail: sales@lambdasci.com Lambda Scientific Pty Ltd Phone: +61 8 8267 2686 Fax: +61 8 8267 2689 E-mail: sales@lambdasci.com 30 LLC-7 High Pressure Spherical Xenon AOS News Volume 21 Number 4 2007 Optical Talk Set from oemarket.com The OTS fiber optic talk set provides voice communication (full duplex) over a single optical fiber cable. This handy instrument is suitable for installation and maintenance of optical networks. Hands free operation makes communication even more convenient. This product features low power consumption design, long operating time (up to 40 hours), clear voice transmission, calling function, 32 step voice volume control, up to 50dB dynamic range for long distance communication. Multimode CWDM 3-Port Add/Drop Device from oemarket.com This add/drop filter has center wavelength at ITU CWDM grids. It combines or splits a single channel from the rest of the channels. This component works with multimode fibers, 62.5/125 or 50/125. Hence it provides add/drop functions for a CWDM network built up using multimode fibers. This product is based on proven thinfilm technology; it has ultra flat and wide pass band, low insertion loss and high channel isolation. Contact: sales@oemarket.com or Visit www.oemarket.com 150W Low Cost Solar Simulator Oriel, a division of Newport Corporation has released a new low cost, 150W solar simulator, offering an option for lower power and lower budget applications. The system offers a 33mm (1.3-inch) diameter collimated output beam and a small arc size allowing the user to focus the output onto a fibre optic bundle or liquid light guide. Further optional Air Mass Filters, Dichroic Mirrors, and Bandpass Filters let you shape the output spectrum as required. Improved Newport Motorised Stages Over the past 6 months Newport has upgraded many of its motorised linear and rotation stages. Improvements include higher performance, lower cost, lower profiles, more compact motor and electronics block, manual control knob on stepper motors, more flexible control cables, simplified product configuration, more easily accessible mounting holes. BGS50 and BGS80 Motorised Goniometer Stages • Improved version of old BGM series stages • Available with either DC or Stepper motor drive • BGS50 travel range: +/-30 degrees • BGS50 resolution: 0.0000698 degrees (DC) or 0.0000969 degrees (Stepper) • BGS80 travel range: +/-45 degrees • BGS80 resolution: 0.0005 degrees (DC) or 0.0001 degrees (Stepper) • BGS50 has compact folded motor For further information on the Newport Motorised Stages or the Solar Simulator, contact Neil McMahon, e: neil.mcmahon@newspec.com.au, t: (08) 8463 1967 31 AOS News Volume 21 Number 4 2007 Ultra-Powerful, Ultrafast Laser – Mira-HP Series For a decade and a half, the Coherent Mira has been the ultrafast laser of choice for scientific research. The advent of the Mira-HP (High Power) now takes Mira’s performance to an unprecedented power level. The Mira-HP has been designed to accept the full 18 watts of pump power from Coherent’s field proven Verdi V18 pump laser. Producing > 4 Watts typical (Mira-HP-F femtosecond model) or > 3.2 Watts typical (Mira-HP-P picosecond model), the Mira-HP is the world’s most powerful commercial ultrafast oscillator. Applications include: • Nanomachining • High harmonic generation • X-ray generation • OPO pumping Ultra-Broadband, Ultrafast Laser – Micra Series The Micra is a series of integrated, compact, ultra-flexible, ultra-broadband femtosecond lasers, available in > 300mW (Micra-5) or the new > 750mW (Micra-10) at 800nm output power configurations. Micra is built on three “industry standard” Coherent technologies: • The legendary reliability and low noise of the Verdi pump laser • The flexibility of the Mira open architecture, flat bed oscillator • The convenience of the Vitesse “one box” package Key features include: • Wavelength tuning from 750nm to 860nm (Micra-5) • Bandwidth selectable from 30nm to 100nm (Micra-5) • Bandwidth can support pulses as short as 7fs Applications include amplifier seeding, optical coherence tomography, terahertz imaging, OPO pumping and high harmonic/X-ray/attosecond pulse generation. Optional accessories include carrier envelope phase stabilisers, pulse synchronizers, external compressors, cavity dumpers and pulse pickers, and a Verdi 18 Watt pump leaving 8 Watts spare to pump your amplifier. Please contact Gerri Springfield or Paul Wardill at Coherent Scientific for further information on the Micra laser systems, the Mira-HP or Coherent’s comprehensive range of ultrafast oscillators, amplifiers and pump lasers. Cyan™ Scientific 488 nm CW Laser The Spectra-Physics Cyan™ Scientific CW 488 nm laser provides researchers with unprecedented beam quality and reliability at power levels of 10-50 mW. Based on a highly reliable externally doubled diode laser, the Cyan Scientific laser provides intrinsically single-frequency operation with best-inclass power and wavelength stability. Designed to minimize space requirements, the compact Cyan laser head measures only 125 x 70 x 34 mm and is ready for use right out of the box. With a linewidth of <1 MHz, the Cyan Scientific laser is ideal for interferometry, Raman spectroscopy and other applications requiring high coherence and spectral stability. Intensity noise of less than 0.2% makes the Cyan Scientific the favoured light source for demanding applications in bioinstrumentation, particle measurement, and confocal microscopy. For further information contact Graeme Jones, e: Graeme.jones@newspec.com.au t: (08) 8463 1967 32 AOS News Volume 21 Number 4 2007 Focus on Microscopy 2008 Osaka, Awaji Island, Japan April 13-16, 2008 21th International Conference on 3D Image Processing in Microscopy 20th International Conference on Confocal Microscopy Dear Colleagues, After the successful FOM2007 conference held in Valencia in April this year, it is a pleasure to announce that the next conference: Focus on Microscopy 2008 will take place in Osaka/Awaji Island, Japan from Sunday, April 13 to Wednesday, April 16, 2008. As the next in a series of unique interdisciplinary meetings on advanced multidimensional light microscopy and image processing, the conference will be hosted by the University of Osaka. Focus on Microscopy 2008 is the continuation of a yearly, well attended conference series presenting the latest innovations in optical microscopy and their application in biology, medicine and the material sciences. Key subjects for the conference are the theory and practice of 3D optical imaging, related 3D image processing, together with reporting on the ever increasing spatial resolutions and sophisticated imaging modes coming available in sectioning microscopy. The conference series is in addition known for covering the rapid development of advanced fluorescence labeling techniques for the confocal and multi-photon 3D imaging of -live- biological specimens. Laser light in combination with 3D microscopy is starting to play an increasingly important role as a tool at the sub micrometer scale in cell biology for dissection and isolation of structures of interest for subsequent analysis. Abstracts for contributions are invited and can already be submitted through the website: http://www.FocusOnMicroscopy.org where further information on the present and previous FOM conferences can be found. Important dates: Deadline for the submission of abstracts: January 15, 2008 Acceptance of contributions, draft program: February 6, 2008 Deadline for early registration: February 26, 2008 We welcome you to Osaka for the FOM2008 conference and exhibition. To stay informed about the conference please leave your name and email at http://www.FocusOnMicroscopy.org/stayinformed. On behalf of the organising committee, Satoshi Kawata and Katsumasa Fujita, Osaka University, RIKEN, Wako City, Japan Fred Brakenhoff, Swammerdam Institute for Life Sciences, University of Amsterdam, The Netherlands E-mail: Web: info2008@FocusOnMicroscopy.org www.FocusOnMicroscopy.org 33 O C TOBER 20 07 NEWSLETTER C O M M I S S I O N I N T E R N AT I O N A L E D ’ O P T I Q U E ● I N T E R N AT I O N A L C O M M I S S I O N F O R O P T I C S ICO mourns the loss of Gallieno Denardo I]^hheZX^Va^hhjZ ^hYZY^XViZYidi]Z bZbdgnd[<Vaa^Zcd 9ZcVgYd# We live in difficult times, and unfortunately the optics community recently experienced a great loss. Gallieno Denardo, who was for more than two decades a leader of the optics and photonics programmes at the Abdus Salam International Centre for Theoretical Physics (ICTP), passed away on 23 July after a heart attack. It was a sudden and unexpected loss. ICO has lost a great friend and a key person who disseminated optics and photonics across the world. I had the great fortune to work with Gallieno over the last six years and I was always impressed by his tenacity, dedication, generosity and great sense of how to manage optics activities. There is little more that we can add, so it is perhaps time to continue with our joint work. This entire issue of ICO Newsletter is dedicated to the memory of Gallieno. These pages refer to important aspects of his unique work to develop programmes in optics and photonics, and they reflect the extent of his international prestige. It is also a good opportunity to thank the ICTP for its necessary support to ensure that Gallieno Denardo’s legacy continues. Maria L Calvo, ICO secretary Compassionate, generous and a man of great vision @ViZeVaa^HgZZc^kVhVc eVnhig^WjiZid 9ZcVgYdÉhZcdgbdjh Xdcig^Wji^dcidi]Z ÒZaYd[dei^Xh!VcY h]VgZh]^hhVYcZhhVi i]ZYZVi]d[]^h[g^ZcY# IC O N E W S L E T T E R 34 In writing about my friend Gallieno Denardo, I have had to resist the temptation to write in the present tense, as if he is still with us – as if he will somehow show up in my office and fill it with his boisterous, if somewhat nervous, laughter. Alas, that will never happen again. Monday 23 July was Gallieno’s 72nd birthday. I sent him a brief e-greeting some time that afternoon. He had been housebound for more than a week because of an accident and I didn’t expect an immediate response. I hadn’t received anything from him by the next morning. At around 10.00 a.m. on the 24th I learned that Gallieno was no more. He had likely passed away just around the time I sent my e-mail. At first I could not believe the news of Gallieno’s death because it seemed so unlikely and untimely. I hoped against hope that someone might show up to reassure me that this terrible news was not true. But, alas, it was true and there was nothing left to do but stare into endless emptiness. I had had lunch with Gallieno just the previous Friday and had mentioned to him that he had probably missed the ICTP more than the ICTP had missed him during his absence. When I drove him from Adriatico to the Main Building, he alighted from the car with some difficulty and walked slowly on his crutches, but he gave no indication of anything more than modest discomfort. If it is true that gentle death without suffering befalls only generous people, there was abundant proof in death, as @ViZeVaa^HgZZc^kVhVcaZ[iVcY<Vaa^Zcd9ZcVgYd XZaZWgViZ6[g^XV9Vndc'(BVn'%%,Vi>8IE!Ig^ZhiZ# in life, that Gallieno was unreservedly generous to all. I know for a fact that he always thought in terms of how he could be useful to others in need, never asking how his actions would serve his strategic advantage. When I came for my first formal visit to the ICTP, still unsure if I would accept the position of ICTP director, Gallieno was one of the people who tipped my decision in favour. He convinced me that it would indeed be possible to set up an experimental research programme at the ICTP (he took me to Elettra and the Optics Lab), and explained why someone like me would be good for the ICTP at that time. Later he was like an older brother to me, giving guidance and advice when asked, rarely pushing a personal agenda and never demanding N O . 73 O C T O B E R 2 0 07 things in return. He made me feel good about myself on occasion – heaven knows that there are many reasons to feel otherwise – and provided as input his immense experience when critical decisions had to be made. Now that Gallieno is gone for good I have to find people to take on all of the responsibilities that he shouldered so capably without pretence. No doubt the ICTP will rise to the occasion and things will turn out fine at some level, but it will never be the same without him. We will miss the wealth of information that resided in Gallieno’s mind, and the compassion and effectiveness with which he used it. 6[g^XV9Vn Recently the ICTP celebrated Africa Day at the instance of the Africa department of the Italian Ministry of Foreign Affairs. Several African scientists, young and old, spoke at the meeting. For those who knew of Gallieno’s involvement in Africa it came as no surprise that the meeting turned out, unplanned, to celebrate Gallieno’s contributions to African science. Nearly everyone acknowledged the warmth and personal involvement that he invested in the ICTP’s projects in Africa. In his usual unassuming way, he brushed off this honour simply by saying that people were exaggerating. Those who knew the details were aware that the truth was different: Gallieno deserved everything that was said of him that day. EVi^ZciVcYegV\bVi^X Gallieno did many things for the ICTP but this is no place to attempt a list. I should, however, mention three aspects: the Office of External Activities (OEA); his mentoring of an important training activity on lasers and optics; and his special interest in eastern Europe. In all of these his vision was not grandiose but pragmatic and practical. He built the OEA over time and with patience, and he cultivated deserving scientists all over the world. He was keenly aware of their shortcomings and knew their little problems and difficulties, but he also knew what measures would be appropriate to solve them. Even though his own field of research was not optics he saw its importance for a number of areas of basic sciences and, through the involvement of many interested people over the world, created a great optics community around the ICTP. For areas in which the ICTP does not have local expertise, as has been the case with lasers and optics, I believe this to be the most effective way to forge ahead. Gallieno had strong feelings for central European cultures, particularly Slavic (he spoke fluent Slovenian), and he devoted much energy to creating strong links with the ICTP. Naturally he had many friends in that part of the world. He was also keen to nurture the ICTP’s relationships with the International Atomic Energy Agency, which he considered vital and strategic. I know that different people have their different ideas of what happens after death. I must confess that I don’t know my own thinking well in this respect – let alone knowing about those of others. However, if it is true that there is a soul that survives the collapse of the physical body, I have no doubt that Gallieno’s soul hovers over the ICTP, taking pride in its accomplishments and cheering us on to do better when it falls short of expectations. But he would be neither jealous nor complaining. That thought lessens my sadness at the knowledge of his death. Katepalli R Sreenivasan, ICTP director and Abdus Salam honorary professor Many scientists have benefited from ICO–ICTP links 6ccV8dchdgi^c^gZXVaah 9ZcVgYdÉh^ckdakZbZci ^ci]ZXdaaVWdgVi^dch WZilZZc>8DVcYi]Z >I8E# N O . 73 O C T O B E R 2 0 07 Contact between ICO and the ICTP started in 1991 with collaborations “on schools” and on “information ‘on and to’ optical scientists in the third world” (an item at the ICO Bureau meeting in 1991). The ICO president at the time, Chris Dainty, was invited by Gallieno Denardo to serve as a director in the 1992 ICTP training college. The official collaboration started with the joint organization of the Winter College on Optics (8–26 February 1993), where ICO took care of the scientific organization. ICO devoted considerable importance to this initiative, with the involvement of the ICO president and two vice-presidents (P Hariharan and me) as directors, and several ICO Bureau members or past members as teachers. A set of hands-on experiments for the students was also planned in the laboratory, which was at that time located at the ICTP. The organization of the experiments deserves some detailed explanation. As the laboratory was mainly equipped with instruments donated by different institutions for laser measurements, the teachers were asked to organize the experiments of interest by borrowing the necessary material from their home laboratories for the duration of the winter college. 6\gZVidg\Vc^oZg I first had an opportunity to work with Gallieno Denardo in Trieste, selecting the students for the college in the summer of 1992, and I realized the kind of organizer and hard worker he was, and also how great his humanity was. There were many more suitable applicants than places available and he was very concerned about this. Without doubt the college was very much appreciated and he immediately started thinking of another one to allow others to attend. The second Winter College took place IC O N E W S L E T T E R 35 in 1995, including the laboratory experiments. Since 2000 the ICO/ICTP award has been delivered during the college. Here is a short background to the award. In previous years Denardo had established and personally funded the Sarwar Razmi prize, to honour the memory of an ICTP associate and personal friend. Denardo worried that the prize would not last for many years. Meanwhile, I was 6ii]ZL^ciZg8daaZ\Z'%%)! involved with the problem of the ICO awards: 9ZcVgYdVcY>8D$>8IEVlVgY there were the well known ICO prize and the l^ccZghGZkVi^C@ja`Vgc^VcY Galileo Galilei award, but I felt the need also to >bgVcV6h]gV[OV]^Yadd`dcVh>8D think of young people from developing countries. egZh^YZciGZc9~cYa^`ZgXjihi]Z Denardo and I considered that a solution might i]Z>8IE)%i]Vcc^kZghVgnXV`Z#I]^h be to propose to the ICO and ICTP authorities ^hVine^XVae]did\gVe]d[9ZcVgYd! the creation of a joint award. I presented the idea hiVcY^c\bdYZhianWZ]^cYi]Z to the ICO Bureau meeting in San Francisco in hXZcZhd[]^hhjXXZhh[jaVXi^k^i^Zh# 1999, and I spoke about making a formal proposal the subsequent year. The bureau found the idea of immediate interest and solicited the proposal for the meeting of the old and new bureau a few days later. The subsequent days were very productive as Gallieno and I, working by telephone, prepared the proposal by establishing in detail the contribution of the two institutions. That same week the ICO Bureau and the ICTP approved “a proposal by Gallieno Denardo and Anna Consortini” to establish a joint prize, the <Vaa^Zcd9ZcVgYdVcY<ZgiKdc7VaanVii]Z>8IEdc '.?jcZ^cedhh^WandcZd[i]ZaVhie]did\gVe]hd[]^b# ICO/ICTP award, devoted “to young researchers from developing countries who conduct their research in a developing country”. The award has now been delivered to nine young scientists from eight countries from across the world. This may be the moment to begin an official proposal to call this award the “ICO/ ICTP Gallieno Denardo award”. This would be an act by the optics community to promote the permanent dissemination of his legacy. Anna Consortini, ICO past-president (1997–1999) Denardo created TSOSA to support developing countries 6ci]dcn?d]chdc gZbZbWZghV ÆY^hi^c\j^hZY ]jbVc^iVg^VcÇl]d lVhYZY^XViZYid Y^hhZb^cVi^c\ ZmXZaaZcihX^ZcXZid YZkZade^c\Xdjcig^Zh# IC O N E W S L E T T E R 36 I am stunned and saddened by the sudden loss of my friend and colleague of nearly 20 years, Prof. Gallieno Denardo. The significance of his loss is difficult to express in words, but my fond memories of this distinguished humanitarian are easy to articulate. I met Gallieno for the first time in 1988, when Prof. Abdus Salam, the late Nobel laureate and founding director of the ICTP, created the Edward Bouchet Abdus Salam Institute (EBASI*). Gallieno was the primary facilitator for Prof. Salam and three of the primary objectives of EBASI, which were: ● to provide a mechanism for synergistic scientific and technical collaborations between African and African-American scientists; ● to increase the technical workforce pool working in Africa today; ● to facilitate the training of PhD students from African universities. As one of the founding members of the American Council of EBASI, I started working with Gallieno at the ICTP and found him to be one of the most gifted, visionary and compassionate of individuals, totally dedicated to disseminating excellent science to developing countries, not only in Africa but also in Asia and Latin America. What seemed to many like an insurmountable task was made agreeable and enjoyable, owing mostly to Gallieno’s congenial, affable nature. I found that his remark- I]Z;^ghi:YlVgY7djX]Zi>ciZgcVi^dcVa8dc[ZgZcXZdc E]nh^XhVcYIZX]cdad\n!]ZaYVii]Z>8IEdc.Ä&&?jcZ &.--#HiVcY^c\Vii]ZZmigZbZaZ[i^hVndjc\9ZcVgYd! l]dXddgY^cViZYi]ZXdc[ZgZcXZ#Egd[#HVaVb^hhZViZY ^ci]ZÒghigdl!h^mi][gdbaZ[i!VcYhZkZgVad[i]Zbdhi gZcdlcZY6[g^XVcVcY6[g^XVc"6bZg^XVce]nh^X^hihd[i]Z YZXVYZVgZegZhZci#6ci]dcn?d]chdc!i]ZcVndjc\7Zaa AVWhhX^Zci^hi!^hhZViZY^ci]ZÒghigdl!Ò[i][gdbg^\]i# able energy galvanized me and countless others into supporting this noble cause. Already an internationally recognized centre for theoretical physics, the ICTP became a mecca for scientists from developing countries to learn the latest advances in theoretical physics from the top scientists in the world. Gallieno, with his background in elementary particle physics, recognized early on that the field of optics and photonics was an exceptional vehicle to expand the scientific breadth of the ICTP N O . 73 O C T O B E R 2 0 07 to a wider audience in the developing world. As the organizer of the ICTP activities in lasers and optics since 1985, he simultaneously served as head of the the ICTP Office of External Activities (OEA) from 1989 to 1997. With the passing of Prof. Salam in 1996, Gallieno became the principal spearhead to implement Prof. Salam’s mandate that the ICTP should “foster advanced studies and research, especially in developing countries”. Even mandatory retirement did not sway his enthusiasm and commitment, as evidenced by Gallieno’s activities as a consultant to the OEA since 1998. I]ZÒghiL^ciZg8daaZ\Z During his tenure with the ICTP, Gallieno organized more than 50 scientific meetings and training courses in the field of lasers, atomic and molecular physics. I remember when he organized his first conference on optics and photonics in 1985, which was entitled the Winter College on Lasers, Atomic and Molecular Physics (21 January – 22 March). The directors of this college were G Amat, T Arecchi, R Bonifacio, A Dymanus, F P Schäfer and O Svelto – all internationally recognized members of the optics community. These were extremely well organized workshops, with 60–80 students having completed or almost completed their PhD from universities in developing countries around the world. The lectures were quite comprehensive, covering the basics to the latest advances in optics and photonics. I recall Gallieno had “rock star” status among the students, who revered him for his scientific prowess as well as his charismatic personality. His attention to detail and concern for scientific excellence was nothing short of extraordinary. For nearly two decades now I’ve admired Gallieno because I have seen the impact that he has had on so many promising students and practising scientists all over the world. It was a pleasure to lecture in two of his early workshops, and subsequently to discuss strategies for the future of the centre DH6VcYHE>:hjeedgiZY>8IEXdaaZ\Zh I was president of the Optical Society of America (OSA) when it signed a memorandum of understanding with the ICTP to support the annual Winter Colleges at a level of $5000, and authorizing this was one of the most satisfying tasks of my term. Given the size of the budget required to run the colleges, this contribution was quite small, but to Gallieno it was priceless simply because it had the approval of the OSA. When SPIE followed with a similar memorandum of understanding the following year, Gallieno was equally delighted. Many times he and I discussed the possibility of getting support and advice from the international optics community, so in 2003 he formed the Trieste System for Optical Sciences N O . 73 O C T O B E R 2 0 07 9ZcVgYdVcY6ci]dcn?d]chdcVii]Z'%%)L^ciZg 8daaZ\ZdcDei^XhVcYE]didc^Xh!l]ZgZi]ZnY^hXjhhZY ^YZVh[dgi]ZcZmiL^ciZg8daaZ\ZVcYi]ZIHDH6VYk^hdgn \gdjebZZi^c\#ÆI]ZhZY^hXjhh^dchlZgZValVnhXdgY^Va VcYfj^iZXdciZbeaVi^kZ!VcYjhjVaanejcXijViZYl^i] dcZd[]^h[Vbdjhan^c[ZXi^djhaVj\]h!ÇhV^Y?d]chdc# and Applications (TSOSA) Advisory Group to promote optical sciences in the developing world. TSOSA includes representatives from SPIE, ICO, OSA, the European Optical Society, Optics Within Life Sciences, the IAEA, UNESCO and science programmes across Europe. In addition to advising the centre’s leaders about programmes for the annual Winter College on Optics, TSOSA offers a vehicle for sharing centre news with the global optics community. It gave Gallieno a professional and international framework to continue his mission of offering assistance and training to young researchers from the developing world. For his efforts, Gallieno received the 2005 SPIE Educator award, a well deserved accolade that recognized his work in organizing optics and photonics schools, colleges, conferences and workshops for the past 20 years. 6i^gZaZhhVYkdXViZ When Gallieno retired we still managed to keep in touch. He continued to give his time and attention to making science and engineering education accessible to grateful students in developing countries around the world. I found him to be one of the warmest and most caring individuals that I have ever met and I will never forget our friendship. The ICTP outreach programmes have lost a tireless advocate, an esteemed mentor and a benevolent leader in Prof. Gallieno Denardo. I can’t imagine who could fill his very large shoes. * EBASI was named in honour of Edward A Bouchet who, in 1876, was the first AfricanAmerican and the first-known person of African descent to earn a PhD degree in physics. Anthony M Johnson, director, Center for Advanced Studies in Photonics Research, University of Maryland Baltimore County; OSA past-president (2002) IC O N E W S L E T T E R 37 African scientists have lost a great friend and supporter It all started with an article that I wanted to submit as a reprint to the ICTP in August 1986. I had been told to contact Prof. Gallieno Denardo in the first instance, and I must say that on that day I had the opportunity to meet a formidable man. In particular I was struck by his bursts of friendly laughter. Since then, each year when I returned to Trieste for various activities at the ICTP, and particularly for the Winter Colleges organized by Prof. Denardo, I was always very happy to meet and work with him to organize the seminars on lasers, atomic and molecular physics. It was very special and comforting to work with him. I remember we used to meet very early in the morning in his office because he was always an early bird at the ICTP. After these meetings I always left his office with at least one positive answer to the AZ[iidg^\]i/6]bVY]djLV\j! many problems involved in the development of <Vaa^Zcd9ZcVgYdVcY9g7VggnVii]Z sciences in Africa. &..*W^Zcc^VaXdc[ZgZcXZd[hX^ZcXZ During the two decades when I had the priviVcYiZX]cdad\n!6;G>HI:8=!^c lege to work with Prof. Denardo, he helped the 9V`Vg!HZcZ\Va#9ZcVgYdlVh African scientific community, working with the VlVgYZY@c^\]id[i]ZA^dcCVi^dcVa ICTP, to make qualitative steps in the develDgYZg!i]Z]^\]ZhiY^hi^cXi^dc opment of the optical sciences in Africa. He VXXdgYZYWni]ZegZh^YZcid[i]Z created, with the support of Prof. Abdus Salam GZejWa^Xd[HZcZ\Va# and several African scientists, the African Laser, Atomic, Molecular and Optical Sciences (LAM) Network. He initiated the creation of all of the ICTP-affiliated centres in Africa. In addition, he helped and supported the organization of several meetings on physics or mathematics in many African countries (e.g. Ivory Coast, Benin, Senegal, Ghana, Sudan, Cameroon, Morocco, Tunisia, Egypt, South Africa, Zimbabwe, Namibia, Botswana, Ethiopia, Gambia, Mozambique and Zambia). 6]bVY]djLV\j YZhXg^WZh]dl9ZcVgYd XgZViZYa^c`hWZilZZc 6[g^XVchX^Zci^hihVcY i]Z^ciZgcVi^dcVa Xdbbjc^in# 6[g^XVÉhÈ\ddY[V^gnÉ Thanks to Denardo, many African researchers, who at the beginning were very isolated, became associate members of the ICTP, and many others have benefited from fellowships on the Sandwich Training Educational Programme, which was initiated by him with the IAEA. Many other African scientists also benefited from the fellowship programme that he initiated with the International Centre for Science and High Technology. In addition, during the last three years, Prof. Denardo fought to make TSOSA operational, with the tentative creation of the mentoring programme and of a permanent optics group at the ICTP. In fact, it can be said that Prof. Denardo was Africa’s “good fairy” at the ICTP. He established useful and fertile interactions between African scientists and the international scientific community. Thus, with the ICTP’s support, the LAM organized several international conferences, workshops and schools on lasers and optical IC O N E W S L E T T E R 38 sciences all over Africa. Thanks to these activities the LAM became an international society member of ICO. And thanks to Denardo’s continuous intermediation, several African countries became members or observers at the International Union of Pure and Applied Physics. Moreover, he helped to create bonds between African scientists and several international optics societies, such as ICO, the Optical Society of America, the Society of Photo-Optical Instrumentation Engineers and Optics within Life Sciences. In the same way, he was at the beginning of the fertile scientific co-operation that exists between the LAM Network and the University of Lund in Sweden, and with the International Programme in Physical Sciences at the University of Uppsala in Sweden, which receives financial support from the Swedish International Development Cooperation Agency. With Prof. Abdus Salam, Prof. Denardo supported the creation of bonds of scientific co-operation between the African diaspora in the US and the African scientific community of physicists and mathematicians by creating the Edward Bouchet Abdus Salam Institute. 9ZcVgYdlVhVigjZ^ciZgcVi^dcVa^hi Prof. Denardo was an untiring combatant, and that to the last breathe, for the development of optical sciences in Africa, and he was a friend who was always present to create opportunities for scientific co-operation. Each visitor at ICTP, whether African, Asian, European or American, believed that he was the best friend of Prof. Denardo. That shows how much he was open with all, and in truth one must say that Prof. Denardo was a true internationalist. In fact at ICTP one can say that he incarnated truly the ideal of Prof. Abdus Salam to make universal the sharing of science. Prof. Denardo, you left us suddenly this Monday 23 July of the year 2007, but to paraphrase the Senegalese poet Birago Diop, in Africa we believe that the dead are not dead, that they are in the running water, that they are in the blowing wind, that they are in the newborn child. But you Prof. Denardo, moreover, you are in the laser light of our laboratories that we created together, you are in the pages of the books, in the memories and on the screens of the computers that we are using at the ICTP affiliated centres, you are in the doctoral theses and in the articles written by our students. You will always be with us during the activities of the LAM and ICO. In the corridors, the offices, seminar rooms and lecture halls of ICTP we will always hear your bursts of laughter so sincere and so friendly. On 31 May 2007 in Trieste, at the Africa Day N O . 73 O C T O B E R 2 0 07 ceremony dedicated to Africa by ICTP, like a premonition African scientists unanimously paid sympathetic homage to your person, urbi et orbi. Today, Prof. Denardo, Africa with endless acknowledgement from the depths of the savan- nas, deserts and forests, beyond the frontiers of space and time, wants to say: “Thank you Prof. Denardo. Lie in peace, dear Gallieno.” Ahmadhou Wagué, LAM Network coordinator and president Denardo was awarded the SPIE Educator award in 2005 BVg^VNojZaXZaZWgViZh 9ZcVgYdÉhXdcig^Wji^dc idigV^c^c\]jcYgZYh d[hijYZcihVcY egd[Zhhdgh^cdei^Xh# N O . 73 O C T O B E R 2 0 07 Prof. Gallieno Denardo did an enormous amount of work organizing activities in optics and lasers at the ICTP. Since 1985, colleges and schools in optics have been held each year to train PhD students, postdoctoral researchers and young professors, mainly from developing countries. Some students and young researchers from developed countries also participated in the school seminars. The collaboration of professors and students from different countries has proved to be very fruitful. About 80 people typically participate in the colleges, and more recently the number has been close to 100. Some 75% of attendees are from developing countries and most of them are fully funded by the ICTP. Denardo organized the colleges and took care of the financial support of the students until his death in July. The faculty – that is lecturers and directors – includes a much smaller percentage of scientists from developing countries. Denardo always tried to have some lecturers and, if possible, a director from those countries. The academic level of the schools is high. The average scientific level of the participants is a PhD. Participants are selected based on merit and also on a balanced geographical distribution. Mainly young scientists are invited. These relationships continue for more than one year (i.e. individuals are often invited to attend colleges in more than one year) to create a link between their institutions and the ICTP, and also between scientists from different developing countries. The college offers opportunities to meet people working in the same field, sometimes from the same country or region. Much collaboration among scientists in developing countries stemmed from their meetings at the the ICTP colleges. Moreover, the colleges provide an opportunity to meet the ICTP coordinators of the external activities that take place in developing countries with the ICTP’s support. In this way the ICTP is the place where coordinators of different optics projects meet, which stimulates the networking of optics activities in the different regions. Denardo was also active in the Trieste System for Optical Sciences and Applications, the Society of Photo-Optical Instrumentation Engineers (SPIE), Optics within Life Sciences, ICO, the Optical Society of America, the European Optical Society and the Italian Society of Optics and Photonics participates in the group. As the SPIE representative on the TSOSA HE>:8:D9g:j\ZcZ6gi]jghegZhZcihi]ZHE>::YjXVidg 6lVgYid<Vaa^Zcd9ZcVgYdVii]Z'%%+L^ciZg8daaZ\Z# I]Z'%%,L^ciZg8daaZ\ZdcDei^XhVcYE]didc^Xh#AZ[i idg^\]i/B?NojZa!<9ZcVgYd!HK7dg^h`^cV>8D$>8IE 6lVgY'%%,!68dchdgi^c^!>6h]gV[OV]^Y!BA8Vakd VcY6LV\j# board since 2004, I know the work developed by Denardo. I was deeply impressed by his enthusiasm and organizational abilities, as well as by the influence of his initiatives in training hundreds of scientists and keeping fruitful scientific links between the ICTP and academic and research groups in developing countries. In 2005 the SPIE Educator Award committee and the SPIE board of directors recognized Denardo for his outstanding contribution to training in optics hundreds of postdoctoral students and professors, mainly from developing countries, by organizing international schools and colleges at the ICTP for 20 years. In an article that appeared in oemagazine (June/July 2005), Denardo wanted to share the award with the ICTP. He said: “I feel that the ICTP, together with me, deserves this honour.” He cited the important support of the ICTP direc- IC O N E W S L E T T E R 39 tor, Prof. Katepalli Sreenivasan. “Without the ICTP I couldn’t have done anything,” he said. Both Denardo and the the ICTP activities in optics and lasers deserved the award. All of us will miss Prof. Gallieno Denardo and will always remember him. I am sure that the ICTP will continue the enthusiastic collaboration with international societies, to continue the legacy of Gallieno. Maria J Yzuel, SPIE vice-president (2005) A champion of optics development in Latin America 6c\ZaV<jobVc gZÓZXihdc9ZcVgYdÉh ^cÓjZcXZ^cAVi^c 6bZg^XV!VcYZmeaV^ch IHDH6ÉhXdbb^ibZci idZchjg^c\i]Vi]^h aZ\VXn^ci]ZÒZaYd[ dei^XhXdci^cjZh# 9ZcVgYdlVhVhigdc\VYkdXViZd[ AVi^c"6bZg^XVc^c^i^Vi^kZh^cdei^Xh# IC O N E W S L E T T E R 40 I received word of Gallieno Denardo’s death with a profound feeling of loss and grief. He had a tremendous influence on my development as a scientist and as a professional, and had also, over a 20 year period, grown to be a good friend. I know that he had a similar influence on many other researchers and students from developing countries, who benefited from his gentle guidance and from the programmes in optics that he fashioned. My memories of Denardo’s many achievements centre largely on the great influence that he had on the development and growth of research in optics in Latin America. What has become RIAO/OPTILAS, the principal international conference on optics in the Iberian-American region, was conceived in the early 1980s at the ICTP, where Latin-American physicists had the opportunity to meet and learn about the work of colleagues from their neighbouring countries. Long before the now-international optical societies were pursuing international outreach, the ICTP supported their initiative and helped to fund the first Latin-American Meeting on Lasers (later OPTILAS), which was held in Medellin, Colombia, in 1984. After assuming responsibility for the ICTP’s activities in optics in 1986, Denardo became a strong advocate of Latin-American initiatives and strongly supportive of OPTILAS. Through his involvement in the organization of a series of conferences on fibre optics at the ICTP, he established contact with leading Brazilian scientists involved in the successful development of the communications industry in Brazil, along with Italian and other European industries and research institutes, to prepare scientists and engineers from developing countries for optical fibre research and, at a minimum, to be educated consumers of the technology. Denardo also organized workshops on lasers at the ICTP, where attendees had the opportunity to do experiments in the the ICTP Laser Lab that he built with donations and support from prestigious European labs. Gallieno supported an Argentinean initiative to create the Multipurpose Optical Network, which, through travel grants from the Third World Academy of Sciences, favours scientific collaboration between Latin-American researchers. On the occasion of the merging of OPTILAS with RIAO (the Iberoamerican Conference on Optics, created by the Spanish in 1992), Denardo again played a decisive role by introducing me to Anna Consortini, then ICO’s past-president and, in his words, his “good friend”. She advised me on the intricacies of international conference schedules, international support and diplomacy. Denardo’s long-term support of the development of optics in Latin America was recognized formally by the Latin-American optics community at the general assembly of RIAO/OPTILAS in Margarita, Venezuela, in 2004. It was at that meeting that the conference series also welcomed its first Nobel prize laureate lecturer, Claude Cohen-Tannoudji. HX^Zci^ÒX^hdaVi^dc It is difficult to imagine now the scientific isolation that researchers in developing countries experienced before the internet age, but for many of us the ICTP and the Winter Colleges presented the only opportunity to keep up to date and to establish international collaborations, because our home institutions could not pay for our attendance at international conferences or for subscriptions to scientific journals. The ICTP library was an invaluable resource for our research and teaching activities, and I still remember Denardo’s happiness not so long ago when the Optical Society of America offered free access to its journals for the ICTP Winter School participants for the duration of the school. Many of us appreciated both the understanding and the encouragement that Denardo gave us when we experienced difficult family situations, as well as his warm congratulations when we achieved professional success or celebrated happy family events. Many of the participants in his early programmes became senior researchers and internationally recognized scientists. Helped by his efforts and those of the ICTP, many of us feel like members of a large international family of optics researchers, sharing a common reference point rather than operating as isolated individuals. The TSOSA Advisory Group was established in 2003 with the aim of advising the ICTP in the area of optics activities. The members of that group, many of whom represent the major international scientific and technical societies and organizations concerned with optics, care deeply about what Gallieno Denardo achieved on behalf of optics, and are committed to seeing that his achievements survive him and that generations to come can benefit from his legacy. Angela M Guzman, TSOSA chair, ICO vice-president N O . 73 O C T O B E R 2 0 07 AOS News Volume 21 Number 4 2007 www.lastek.com.au 41 sales@lastek.com.au Contacts International Commission for Optics (www.ico-optics.org). 7jgZVjbZbWZgh'%%*Ä'%%- EgZh^YZci A T Friberg EVhi"egZh^YZci R Dändliker IgZVhjgZgA Sawchuk HZXgZiVgn M L Calvo, Departamento de Óptica, Universidad Complutense, 28040 Madrid, Spain. E-mail mlcalvo@fis.ucm.es. 6hhdX^ViZhZXgZiVgn G von Bally K^XZ"egZh^YZcih!ZaZXiZY S N Bagayev, A M Guzmán, G F Jin, B Y Kim, M Kujawinska, H Lefèvre, J Love, I Yamaguchi K^XZ"egZh^YZcih!Veed^ciZY J Braat, M Gu, I C Khoo, G Sincerbox, P Stahl, A Wagué HZc^dgVYk^hZgVYeZghdcVb P Chavel >JE6E8djcX^agZegZhZciVi^kZ Y Petroff Forthcoming events with ICO participation 8Vbe^cVh"HE!7gVo^a# ;dg[jgi]Zg^c[dgbVi^dcVWdjiVcnd[i]ZhZ ZkZcih!hZZlll#^Xd"dei^Xh#dg\$ZkZcih#]iba# 8dciVXi/?V^bZ;gZ_a^X]![gZ_a^X]5^Ò#jc^XVbe# Wg]iie/$$g^Vd"dei^aVh#^Ò#jc^XVbe#Wg -Ä&'DXidWZg'%%, Advanced Infrared Technology and Applications (AITA 2007) AZc!<jVcV_jVid!BZm^Xd# 8dciVXi/Egd[#BVg^_VHigd_c^`!bhigd_c^`5Vda# Xdb]iie/$$gdcX]^#^hi^#Xcg#^i$6>I6'%%, '&Ä'+DXidWZg'%%, RIAO/OPTILAS’07 '.Ä(%DXidWZg'%%, Environmental Monitoring for Sustainable Development 8VeZ8dVhi!<]VcV# 8dciVXi/Egd[#EVja7jV]"7VhhjV]! WjV]WVhh5]dibV^a#Xdb Encuentro de Óptica Aplicada/Meeting on Applied Optics ,Ä&&?jan'%%7jZcdh6^gZhVcYAVEaViV!6g\Zci^cV# ICO-21, Triennial Congress of the lll#X^de#jcae#ZYj#Vg$:D6 International Commission for Optics 9Vga^c\=VgWdjg!HnYcZn!6jhigVa^V# &.Ä')CdkZbWZg'%%, 8dciVXi/Egd[#?d]cAdkZ!_Ya&')5 ICO Topical Meeting 2007 on Optics ghe]nhhZ#Vcj#ZYj#Vj and Laser Applications in Medicine and lll#^XZVjhigVa^V#Xdb$>8D'%%- Responsibility for the accuracy of this information rests with ICO. President: Ari T Friberg, Royal Institute of Technology, Optics, Electrum 229, SE-164 40 Kista, Sweden; e-mail ari.friberg@imit.kth.se. Associate secretary: Gert von Bally, Laboratory of Biophysics, Medical Centre, University of Münster, Robert-Koch-Str. 45, D-48129 Münster, Germany; e-mail lbiophys@uni-muenster.de. N O . 73 O C T O B E R 2 0 07 42 IC O N E W S L E T T E R AOS News Volume 21 Number 4 2007 2008 Subscription Renewal Form ABN 63 009 548 387 Title Postal Address Initials First Name(s) Surname Employer/Institute/Company Telephone Number Facsimile Number email Affiliations (please tick) AIP OSA SPIE Main Activities (number up to three, in order of importance) First 1 2 3 4 5 6 7 astronomical optics atmospheric optics communications and fibres electro-optics fabrication and testing information processing lasers Second Third 8 optical design 9 optical physics 10 radiometry, photometry & colour 11 spectroscopy 12 thin films 13 vision 14 quantum optics Email Notices: Notices will be sent to the email address provided. Do you wish to receive posted notices as well? SUBSCRIPTION RATES (inc. 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