a Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, China; b Institute of Crystal Materials, Shandong University, Jinan 250100, China
Abstract The coupled wave equations and their analytic solutions in photorefractive crystals are presented for the case of two-beam writing, while the light-induced scattering is considered, Using this result, the diffraction efficiency for each writing beam is discussed in doped KNSBN crystals with unidirectional fan, which is explained theoretically and verified exper-imentally.
Received: 07 April 1994
Accepted manuscript online:
PACS:
42.70.Nq
(Other nonlinear optical materials; photorefractive and semiconductor materials)
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