【摘要】 光折变效应是近年来出现在非线性领域里的一个新课题 .本文通过对恒定光栅衍射理论的研究 ,提出了提高光折变晶体稳态相位栅衍射效率的三种途径更多还原

【Abstract】 Photorefractive effect is a new topic in nonlinear optic. In this paper, the theory of the coupled wave for thick hologram gratings is discussed. Three ways to improve the diffraction efficiency in volume phase gratings of photorefractive crystals are proposed.更多还原