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1 August 2002 Development of holographic optical elements based on LiNbO3 photorefractive crystals and As-S-Se chalcogenide films
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Abstract
We have studied holographic grating recording in Fe-doped photorefractive crystals LiNbO3 (LN) and in doped As-S- Se chalcogenide glassy semiconductor (CGS) films. Transmission gratings in (alpha) -cut crystals of LN are efficient enough to demonstrate effect of optical channeling. Volume gratings recorded in LN crystals may be used as a parallel array of the planar waveguides. For the CGS slanted grating geometry was tested, aiming on creation of asymmetric blazed gratings. Asymmetry of non-Bragg diffraction orders was observed and its was 12 times enhanced by a gold coating. For the first time reflection volume grating were recorded in 2 mm thick CGS by green solid state laser ((lambda) equals 532 nm, P equals 100 mW).
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Nickolai V. Kukhtarev, Tatiana V. Kukhtareva, Vernessa M. Edwards, JaChing Wang, Vasile K. Rotaru, Oleg Ya Korshak, and Igor V. Ciapurin "Development of holographic optical elements based on LiNbO3 photorefractive crystals and As-S-Se chalcogenide films", Proc. SPIE 4732, Photonic and Quantum Technologies for Aerospace Applications IV, (1 August 2002); https://doi.org/10.1117/12.477432
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