Raman spectroscopy Physics Department Faculty of Science Mr/ Abd El mo’ez Ahmed Mohammed “3th group” “Neutron physics and application in material science and nuclear application” physics department Faculty of Science Sohag University Egypt JINR’s group Supervisor : prof . S.I. Tutunnikov. Technician : Mr. Kovalev Yura. Why we use Raman spectroscopy? Raman spectroscopy is used to determine the molecular motions, especially the vibrational one . Now what is the application? We can use Raman spectroscopy in: Tissue characterization. Tissue Imaging. Live Cell Imaging. Tissue characterization Tissue Imaging Live Cell Imaging All the sexiness, without the dyes!! hn h(n (-+) n1) 3 hn 2 1 0 Inelastic Scattering Virtual Level Energy • Energy transferred from incident light to molecular vibrations S1 3 2 1 0 Rayleigh (elastic) Scattering Raman (inelastic) Scattering S0 difference in energy Raman Spectrometer Main view of SOLAR-TII setup Raman spectrometer’s mechanism. The laser beam falls on the filter and then it passes to the objective and collides with the Sample. The light will be scattered in all directions and will be reflected to the objective again. After the reflected light reaches the objective it falls down on the spectrometer system and finally to the CCD or PMT detectors. Principle of Confocal Microscopy Experimental data of a ceramic material. 600 Intensity 400 200 0 -200 400 450 500 550 600 Wave lenght (nm) 650 700 750 Acknowledgement Finally I’d like to thank 1- Mr/ Kovalev Yura. 2- Mr/ Valantine. for their help and efforts.