19 October 2000 Steady state analytic solutions on photorefractive grating formulation with any light modulation and excitation
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Abstract
The photorefractive grating formulation is a dynamic process which means that the interference light intensity of the two coherent beams inducing a phase grating through photo- induced refractive index variation and the phase grating changing the intensities of the two beam through beam- coupling take place at the same time. The analytic solution for such a grating formulation can be only obtained by simultaneously solving the material equations and the coupled wave equations. In this paper, using the Moharam's space-charge field function and the coupled wave equations, we first obtained the exact and approximate analytic solutions to the photorefractive grating with any light modulation depth and any constant light excitation efficiency. Here three step calculation idea has been used. These solutions help to understand the two-beam coupling effect and the interacted grating formulation process in physics more straightforward and in quantity more exactly.
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Yingchun Guo, Liren Liu, Jianlang Li, Changhe Zhou, "Steady state analytic solutions on photorefractive grating formulation with any light modulation and excitation", Proc. SPIE 4110, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI, (19 October 2000); doi: 10.1117/12.404792; https://doi.org/10.1117/12.404792
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