Abstract
The kinetics of charge gratings induced by a standing light wave in a photorefractive crystal in the presence of an electric field is described correctly. It obeys an ordinary differential equation of the fourth order that has two pairs of complex conjugate solutions. A general solution to this equation that satisfies a given initial condition is derived. The field-related mechanism causing charge oscillations and extending the time the gratings take to pass into the steady state is revealed. A relation between these oscillations and space-charge waves is found.
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Original Russian Text © N.A. Gusak, 2009, published in Zhurnal Tekhnicheskoĭ Fiziki, 2009, Vol. 79, No. 3, pp. 63–70.
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Gusak, N.A. Charge grating kinetics in photorefractive crystals subjected to an electric field. Tech. Phys. 54, 389–396 (2009). https://doi.org/10.1134/S1063784209030104
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DOI: https://doi.org/10.1134/S1063784209030104