摘要
本文考虑了非线性极化强度对cos(k·r)的依赖关系,对共振增强简并四波混频的半经典处理提出了修正,得到相位共轭反射率满足的Riccatti方程.使用可调谐连续波CO_2激光器和SF_6气体作非线性介质作了实验研究.获得了(0.2～0.8)×10^(-4)的反射率.
A modification to the semiclassical treatmeat of rasonantly enhanced DFWM has been presented by considering the dependence of nonlinear polarization on cos(k·r). It hag been found that the phase-conjugate reflectivity obeys Ricoatti equation. Experiments are performed using a CW tunable CO2 laser and SF6 gas as nonlinear medium. The reflectivities of (0.2-0.8) ×10-4 are obtained.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1992年第7期577-582,共6页
Acta Optica Sinica
关键词
相位共轭
共振增强
简并四波混频
phase conjugation, resonantly enhanced DFWM, phase-conjugate reflectivity.
