摘要
利用变分近似方法，对高斯光束在三阶非线性材料中的传播特性进行了理论分析，获得了远场中心规一化透过率随材料位置变化的解析解．同时也分析了规一化透过率峰谷差及峰谷距离与样品厚度的关系，取得了与先前头验相同的结论．
By variational approach,we analyze the characteristics of beam propagation thr-ough a cubic nonlinear optical medium,and obtain the analytic solution to the nor-malized transmittance at the center of far-field as a function of sample position. Wealso analyze the peak-valley transmittance change and peak-valley transmittance sepa-ration as a function of sample length,and results are basically consistent with pre-vious experimental results.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1994年第10期1712-1717,共6页
Acta Physica Sinica
基金
国家自然科学基金及天津市青年基金
