Photoinduced optical and electrical pulsations and pattern formation in photorefractive crystals

Nickolai V. Kukhtarev; Tatiana V. Kukhtareva; Mekonen Bayssie; Benjamin G. Penn; Donald O. Frazier; Hossin Ahmed Abdeldayem; Partha P. Banerjee; Tracy Dean Hudson; William A. Friday

doi:10.1117/12.453584

20 November 2002 Photoinduced optical and electrical pulsations and pattern formation in photorefractive crystals

Nickolai V. Kukhtarev, Tatiana V. Kukhtareva, Mekonen Bayssie, Benjamin G. Penn, Donald O. Frazier, Hossin Ahmed Abdeldayem, Partha P. Banerjee, Tracy Dean Hudson, William A. Friday

Author Affiliations +

Proceedings Volume 4803, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VIII; (2002) https://doi.org/10.1117/12.453584
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

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, Tatiana V. Kukhtareva, Mekonen Bayssie, Benjamin G. Penn, Donald O. Frazier, Hossin Ahmed Abdeldayem, Partha P. Banerjee, Tracy Dean Hudson, and 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); https://doi.org/10.1117/12.453584

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