光谱分辨双光束耦合法:公式推导和数值模拟(英文)

Spectrally Resolved Two Beam Coupling:Formula Derivation and Numerical Simulation

本文通过对光波互作用的耦合波方程解析求解 ,得到了光谱分辨双光束耦合法测量介质克尔效应和双光子吸收过程的解析公式。在此基础上 ,又对不同延时和失谐量条件下的测量结果进行了大量数值模拟 ,从而理解并掌握了光谱分辨双光束耦合法的物理本质及实验路径 。

We derived a formula for evaluating third order nonlinear coefficient that has been confirmed by spectrally resolved two-beam coupling method. Figures of dependence of signals on the temporal delay and/or detuning are demonstrated by numerical simulation, which forms a robust base for our further experimental applications.