Wenge Yang Department of Physics/Microelectronics-Photonics Program University of Arkansas, Fayetteville, AR 72701 Tel: 479-444-6412(H) 479-575-6502(O) Email: wxy03@uark.edu OBJECTIVE Award-winning, highly skilled and exceptionally educated individual with over 15 years of research & development experience and demonstrated achievements seeks challenging research scientist positions in Microelectronics-Photonics and/or Physics. Offering initiative, problem solving acumen and dedication to organization that values experience, hard work and a commitment to achieving desired objectives. RESEARCH INTERESTS Nonlinear dynamics in atom-photon interaction; chaos theory and experimental control; slow and fast speed of light; quantum optics; quantum information and computation; photonic crystals; biophotonics. PROFESSIONAL HIGHLIGHTS • Demonstrates outstanding research and development abilities • Possesses strong problem solving skills • Thrives in team dynamic and operates independently equally as well • Demonstrates excellent written & verbal communication skills • Possesses exemplary work ethic—highly dependable and committed to achieving desired objectives • Demonstrates excellent adaptability to new areas of research EDUCATION PhD, Physics/Microelectronics & Photonics Expected May 2005 University of Arkansas, Fayetteville, AR • GPA: 3.89 cumulative; 3.95 major • Dissertation: Dynamical Behaviors of Three-Level Atoms Inside an Optical Ring Cavity Advisor: Dr. Min Xiao, Distinguished Professor of Physics MS, Sensor Engineering and Scientific Testing Instrumentation 1994 Zhejiang University, Hangzhou, Zhejiang, P.R.China • Thesis: Distributed Control System Design of Coating Line BS, Optical Engineering 1989 Zhejiang University, Hangzhou, Zhejiang, P.R.China Ranked top 2% at the Department of Optical Engineering WORK EXPERIENCE SENIOR RESEARCH ASSISTANT 8/2002 - present Department of Physics and Microelectronics Photonics Graduate Program University of Arkansas • Theoretical studies of quantum coherence effect to the steady state response of different multi-level atoms. For example, optical bistability was studied for a three-level atomic system in Λ-configuration as well as V-configuration contained in an optical ring cavity. • Observation and controlling dynamical instability of three-level atoms inside an optical ring cavity. The optical instability behavior over large ranges of the parameter space was experimentally explored and the observations were found to be consistent with the theoretically calculated results. • Cavity ringdown effect (CRE) enhanced by electromagnetically induced transparency (EIT). The unique absorption and dispersion properties of EIT were used to significantly relax the stringent conditions for observing cavity ringdown oscillations. • Frequency stabilization of external cavity diode laser (ECDL). A simple method, which used a flat mirror instead of grating to provide feedback, was developed to effectively stabilize the diode laser frequency to eliminate the possible noise sources in our experiments. • Backward hysteresis in an optical ring cavity. A “backward” (clockwise rotating) hysteresis cycle was observed experimentally in the system of an optical ring cavity containing three-level (Λ-type configuration) rubidium atoms. The shape and direction of the observed hysteresis cycles can be easily controlled with experimental parameters. • Chaotic behaviors in three-level atomic optical bistability system. By manipulating the absorption, dispersion, and nonlinear optical properties in the three-level EIT system, route to chaos through periodic doubling was experimentally observed. The chaotic behaviors can be controlled by changing coupling beam parameters only, as well as other experimental parameters, such as probe detuning. RESEARCH ASSISTANT 1/2001 – 7/2002 Department of Physics and Microelectronics Photonics Graduate Program University of Arkansas • Designed dense wavelength division multiplexer (DWDM). The designed DWDM had 1024 channels with 12.5 GHz channel spacing centered at 1550 nm. The designed 3 product also fitted in a physical size as small as 1 cm , making it possible to integrate into a small chip. • Participated in researches in the area of optical communication and nonlinear fiber optics. One Figure-8 fiber laser was built in the lab, in which 15 femtosecond laser pulses can be generated. A lot of system-level simulations using commercial software VPI were performed during the research. • Performed theoretical simulations in the design of grating-assisted cascaded all-pass filters. The side-coupling effect between two adjacent microrings in cascaded all-pall filters was shown to effectively double the filter order thus give better performance with the same filter order. • Proposed all-fiber quantum communication and quantum information. I helped writing the proposal “Experimental implementation of Quantum Dense Coding Using Optical Fiber” and did some preliminary research on this subject. This proposal is aimed at combining optical fiber and quantum dense coding together to increase the capacity of optical communication systems. LECTURER 3/1994-12/2000 Department of Control Science and Engineering, Zhejiang University Hangzhou, Zhejiang, P.R.China • Taught the following core courses for junior students: o The Principles and Applications of Microcomputers o Introduction to Data Communication and Optical Networks • Participated in and presided over the following research projects: o Management Information System for City Gas Company o Integrated Data Acquisition and Management Information System for Chemical Plant o Highly Reliable Statistical Time-Division Multiplexer o Integrated Monitor and Control System for City Public Services o Tunable Optical Filters for WDM Optical Communication Networks • Supervised undergraduate student thesis works. • Served as class supervisor (1995-1999) OPTICAL ENGINEER 8/1989-8/1991 Hangzhou Intelligent Optical Instrument, Inc., Hangzhou, Zhejiang, P.R.China • Participated in the following research project and product development o Automatic Alert System for Crane Overloading Using Microcomputer o Analog and Digital Circuit Experimental Devices TECHNICAL SKILLS & PROFICIENCIES • Over 15 years experience in scientific computation and modeling. Proficiency in C/C++, Fortran, Matlab, Mathematica, Femlab, Phthon, Assembly (Intel), FDTD, LabView, LaTeX, PowerBuilder and MS SQL Server. • Good at computer-aided design and simulations. Proficiency in optical system design software Zemax, waveguide and photonic crystal simulation software RSoft and mpb, and circuit design software Protel. • Proficiency in using XPPAUT and DSSolver to analyze nonlinear dynamical system and chaos. • Proficiency in hardware development using single-chip microcontrollers. AWARDS & ACTIVITIES • Research Progress Award of Zhejiang Province • Student member of OSA PUBLICATIONS 1998 • Wenge Yang, Amitabh Joshi and Min Xiao, “Experimental observation of enhanced cavity ringdown effect due to electromagnetically induced transparency,” manuscript in preparation for submission. • Wenge Yang, Amitabh Joshi and Min Xiao, “Chaotic behaviors in three-level atomic optical bistability system,” manuscript in preparation for submission. • Amitabh Joshi, Wenge Yang, and Min Xiao, “Dynamical hysteresis in a three-level atomic system” Opt. Lett. (accepted). • Amitabh Joshi, Wenge Yang and Min Xiao, “Hysteresis loop with controllable shape and direction in an optical ring cavity” Phys. Rev. A 70, Rapid Communication 041802 (2004). • Wenge Yang, Amitabh Joshi , Hai Wang and Min Xiao, “Simple method for frequency locking of an extended cavity diode laser'' Appl. Opt. 43, pp5547-5551 (2004). • Wenge Yang, Amitabh Joshi and Min Xiao, “Enhancement of cavity ringdown effect based on electromagnetically induced transparency” Opt. Lett. 29, pp2133-2135 (2004). • Wenge Yang, Amitabh Joshi and Min Xiao, “Controlling dynamic instability of three-level atoms inside an optical ring cavity'' Phys. Rev. A 70, 033807-1 (2004). • Amitabh Joshi, Wenge Yang and Min Xiao, “Effects of spontaneously generated coherence on the dynamics of multi-level atomic systems” Phys. Lett. A 325, pp30-36 (2004). • Wenge Yang, Amitabh Joshi and Min Xiao, “The effect of side-coupling on cascaded microring all-pass filters” Opt. Comm. 232, pp209-216 (2004). • Amitabh Joshi, Wenge Yang and Min Xiao, “Effect of quantum interference on optical bistability in a three-level V-type atomic system” Phys. Rev. A 68, 015806-1 (2003). • Amitabh Joshi, Wenge Yang and Min Xiao, “Effect of spontaneously generated coherence on optical bistability in three-level Λ-type atomic system” Phys. Lett. A 315, pp203-207 (2003). CONFERENCE PRESENTATIONS • Wenge Yang, Amitabh Joshi and Min Xiao, “Chaotic behaviors in three-level atomic optical bistability system” (submitted to QLES 2005, Baltimore, MD) • Wenge Yang, Amitabh Josh and Min Xiao, “Controlling the dynamic instability of threelevel atoms inside an optical ring cavity” (Frontiers of Optics, Rochester NY, 2004. FThJ2) • Amitabh Joshi, Wenge Yang and Min Xiao, “Dynamical hysteresis in optical bistability of a three-level atomic system” (Frontiers of Optics, Rochester NY, 2004. FWH13) • Wenge Yang, Amitabh Josh and Min Xiao, “Enhancement of cavity ringdown effect using electromagnetically induced transparency” (OSA Annual Meeting, Frontiers of Optics, Rochester NY, 2004. FTuD2) • Amitabh Joshi, Wenge Yang and Min Xiao, “Controlling the shape and direction of hysteresis cycle in an optical bistability system with three-level atoms” (CLEO 2004, San Francisco CA) • Wenge Yang, Amitabh Joshi and Min Xiao, “Lossy microring all-pass filters” (OSA Annual Meeting, Frontiers of Optics, Tucson AZ, 2003) REFERENCES Provide on request.