摘要
从描述双光束耦合规律的动态方程组出发．在考虑了光栅调制度变化后，给出了包含晶体固有参数、入射总光强、入射夹角、光强比等变量在内的写入响应时间解析表达式，实验结果与理论分析定性符合很好。
Considering the change of the grating modulation index, a united analytic formula of the response time for two-beam coupling is obtained by solving the dynamic equation of two-beam coupling. It involves paratmeters of crystals, incident intensity, full incident angle and signal-pump ratio. The experimental resultS using Ce:KNSBN crystal are in good agreement with the theory qualitatively.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1996年第2期187-192,共6页
Chinese Journal of Lasers
基金
山东大学晶体研究所开放实验室基金
关键词
光折变晶体
双光束耦合
响应时间
光学
photorefractive crystal, two-beam coupling, response time
