20 November 2002 Photoinduced optical and electrical pulsations and pattern formation in photorefractive crystals
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Abstract
We have observed the conversion of CW laser Ar-ion beam power into pulsating multi-channel outputs: optical, electric and piezoelectric with simultaneous dynamic pattern formation. Frequencies of multi-channel pulsations have characteristic sigmoidal dependence (with threshold) on laser intensity. We have also demonstrated the possibility of synchronization of two optical pulsators, through regulated optical coupling in a photorefractive LiNbO3 crystal. Spatial distribution of scattered light is selforganized in different patterns (hexagonal and cross-type)
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Nickolai V. Kukhtarev, Nickolai V. Kukhtarev, Tatiana V. Kukhtareva, Tatiana V. Kukhtareva, Mekonen Bayssie, Mekonen Bayssie, Benjamin G. Penn, Benjamin G. Penn, Donald O. Frazier, Donald O. Frazier, Hossin Ahmed Abdeldayem, Hossin Ahmed Abdeldayem, Partha P. Banerjee, Partha P. Banerjee, Tracy Dean Hudson, Tracy Dean Hudson, William A. Friday, William A. Friday, } "Photoinduced optical and electrical pulsations and pattern formation in photorefractive crystals", Proc. SPIE 4803, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VIII, (20 November 2002); doi: 10.1117/12.453584; https://doi.org/10.1117/12.453584
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