Computer-generated holograms in photorefractive LiNbO3 crystal

Kiyoshi Nakagawa; Shinya Iguchi; Takumi Minemoto

doi:10.1117/12.326844

9 October 1998 Computer-generated holograms in photorefractive LiNbO₃ crystal

Kiyoshi Nakagawa, Shinya Iguchi, Takumi Minemoto

Proceedings Volume 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV; (1998) https://doi.org/10.1117/12.326844
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Photorefractive Fe doped LiNbO₃ single crystal has been proposed to be a material for Computer-Generated Hologram (CGH). The diffraction efficiency of the synthesized CGH was experimentally estimated at around 20 percent. In this estimation, several kinds of diffraction grating were constructed in the crystal by a focused laser beam that was manipulated by a laser beam scanner. Also, by using the same system, a well designed digital CGH was synthesized in Fe:LiNbO₃ single crystal. This CGH enable to reconstruct the recorded pattern with the desired intensity in an optical Fourier transformation system.

Citation Download Citation

Kiyoshi Nakagawa, Shinya Iguchi, and Takumi Minemoto "Computer-generated holograms in photorefractive LiNbO₃ crystal", Proc. SPIE 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV, (9 October 1998); https://doi.org/10.1117/12.326844

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