一般三波混频导致的介质折射率感应变化

Induced Refractiue Index Change Resulted from General Three-Wave Mixing

本文从理论上分析了无增益二次非线性过程中的感应折射率变化;导出与入射光振幅有关的感应折射率变化量表达式;确定实现折射率最大变化的条件;对介质有感应折射率变化时位相匹配问题也进行了讨论;还简要讨论了特殊情况下介质感应折射率变化关系。

Induced refractive index change (IRIC) in no--gain second order optical nonlinearprocess is analysed theoretically; the expressions of IRIC with input light field am-plitudes are derived and the physical conditions for maximum IRIC are established;the problems about phase matching considering IRIC in medium and IRIC in special.second order optical nonlinear processes are also discussed in this paper.