Abstract

A general first-order ordinary differential equation that describes the temporal behaviors of all the Fourier components of the space-charge field due to two noncollinear plane light interference patterns is derived from Kukhtarev's nonlinear differential equations. Temporal behaviors of the second- order as well as fundamental components of the space-charge field are analyzed for both stationary and moving light interference patterns. Two special cases are described in detail. The first case is space-charge field generation the application of two noncollinear plane light interference patterns simultaneously. The second case is for sequential recording of two noncollinear gratings in order to investigate the effect of the second light interference pattern on the existing space-charge field grating. Decaying characteristics of the second-order spacecharge field grating are also observed. Numerical simulations for the photorefractive crystal Bi₁₂SiO₂ are utilized for the analysis. Implications of the results on volume holographic interconnections are presented.

© 1990 Optical Society of America