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22 October 2004 Light influence on domain switching process in ferroelectrics
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Recently the experiments demonstrating the advantages of direct optical control of ferroelectric domain profiles have been carried out. Here we present our findings and detailed analysis on time dependence of the ferroelectric coercive field after domain inversion of the LiTaO3 and LiNbO3 crystals. We have investigated the mechanisms of light influence and possibilities of optical control of domain structures in ferroelectrics, in particularly the roles of the various internal field components, their origins and dynamic behavior following domain reversal. Our experiments have shown the possibility of direct optical control of domain patterning in ferroelectrics.
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Armen R. Poghosyan, Ruben K. Hovsepyan, and Vahe G. Lazaryan "Light influence on domain switching process in ferroelectrics", Proc. SPIE 5560, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications X, (22 October 2004);

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