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SM ISO690:2012 KUKHTAREV, Nickolai, KUKHTAREVA, Tatiana, BAIRAVARASU, Sundar R., EDWARDS, Vernessa M., WANG, Jaiching, ROTARU, Vasile, BUCHHAVE, Preben. Optical channeling for radial holographic grating recording in chalcogenide glassy semiconductors films and photo-thermo-plastic films. In: Proceedings of SPIE - The International Society for Optical Engineering, Ed. 2, 31 iulie - 1 august 2005, San Diego, California. Bellingham, Washington: SPIE, 2005, Ediția 2, Vol.5912, pp. 1-9. ISBN 0819459178. ISSN 0277786X. DOI: https://doi.org/10.1117/12.614173 |
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Proceedings of SPIE - The International Society for Optical Engineering Ediția 2, Vol.5912, 2005 |
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Conferința "Operational Characteristics and Crystal Growth of Nonlinear Optical Materials" 2, San Diego, California, Statele Unite ale Americii, 31 iulie - 1 august 2005 | ||||||
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DOI:https://doi.org/10.1117/12.614173 | ||||||
Pag. 1-9 | ||||||
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We discuss phenomena of the optical photons and charged particle channeling in the periodic structures. While particle (as protons) channeling is widely used for the characterization of defects in crystals, channeling of photons is less known. We have demonstrated feasibility of optical channeling method for copying of phase radial grating on the chalcogenide semiconductor glass film and photo-thermoplastic films (PTPF). Chalcogenide glassy semiconductors (CGS) as a medium for recording of optical information have some advantages such as the possibility of achieving a higher resolution power, stability, and a high photosensitivity. We report about recording of the radial phase grating in the doped As-S-Se (CGS). Radial grating was recorded by making copy from the master phase grating placed in the near-field zone and exposure to the CW green (λ=532 nm) low power (P=100 mW) solid-state laser or incoherent UV source. The exposure time has been varied from 15 to 30 min. The recording process could be explained by optical channeling. This phenomenon gives us an opportunity to create phase radial grating using coherent and incoherent illumination. |
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Cuvinte-cheie Engineering controlled terms Holography, photosensitivity, Semiconductor materials, Solid state lasers Engineering uncontrolled terms Chalcogenide semiconductors, Optical channeling, Optical photons Engineering main heading Diffraction gratings |
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