Abstract： A slant grating was recorded with two laser beams incident on photorefractive crystal in an external dc electric field. Two-dimensional perturbative analytical solution for the first two-order space-charge field for steady-state photorefractive slant grating recording has been obtained. It is shown that the inclusion of the longitudinal component of the space-charge field during photorefractive two-wave coupling can predict reduction of the fundamental harmonic and enhancement or reduction of the second-order harmonic for various applied field strength and various grating slant angles. The dependence of the first two-order harmonics on the slant angle and on the applied field strength is examined.
(Other nonlinear optical materials; photorefractive and semiconductor materials)
引用本文:
JIANG Yong-yuan;FENG Yu-wen;ZHOU Zhong-xiang;LI Yan;SUN Xiu-dong;XU Ke-bin. Two-dimensional Perturbative Analysis of Slant Grating in Photorefractive Crystals in an External Electric Field[J]. 中国物理快报, 1998, 15(6): 423-425.
JIANG Yong-yuan, FENG Yu-wen, ZHOU Zhong-xiang, LI Yan, SUN Xiu-dong, XU Ke-bin. Two-dimensional Perturbative Analysis of Slant Grating in Photorefractive Crystals in an External Electric Field. Chin. Phys. Lett., 1998, 15(6): 423-425.
1998, Vol. 15 
