9 October 1998 Photorefractive spatial light modulator using anisotropic self-diffraction in BaTiO3
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We demonstrate a photorefractive incoherent-to-coherent optical converter using anisotropic self-diffraction (ASD) in BaTiO3. Only two writing beams are required in the spatial light modulator and no extra readout beam is required. The diffraction efficiency reaches 50 percent. The resolution diffracted image is 22.6 lp/mm with a 6.6 by 6.6 by 7 mm crystal. We can increase the resolution by using a thin crystal without expense of the diffraction efficiency because of the inherent high diffraction efficiency of ASD in BaTiO3.
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Ching-Cherng Sun, Ching-Cherng Sun, Bor Wang, Bor Wang, Jenq-Yang Chang, Jenq-Yang Chang, } "Photorefractive spatial light modulator using anisotropic self-diffraction in BaTiO3", Proc. SPIE 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV, (9 October 1998); doi: 10.1117/12.326853; https://doi.org/10.1117/12.326853

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