Dependence of space charge field and gain coefficient on the applied electric field in photorefractive materials
作者： Ruchi Singh , M.K. Maurya , T.K. Yadav , D.P. Singh , R.A. Yadav
DOI: 10.1016/J.OPTLASTEC.2010.05.010
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摘要: Intensity dependent space charge field and gain coefficient in the photorefractive medium due to two interfering beams have been calculated by solving material rate equations presence of externally applied dc electric field. The has studied with respect variations input intensity, modulation depth, concentration ratio normalized diffusion absence Space also computed varying intensity It found that change decreases increasing for different values appreciable effect only when it is larger than
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