等离子体四波混频精确解透射光栅位形

EXACT SOLUTION OF THE FOUK-WAVE MIXING IN PLASMA THE TKANSMISSION GRATING CONFIGURATION

给出等离子体介质中的简并与近简并四波混频形成透射光栅时的普适四波非线性耦合方程组。得到了在任意复耦合系数下的精确解析解，其解不仅适用于各种等离子体形态，也可以推广到光致折射材料中去。对进一步理论研究四波混频相位共轭原理以及研制新型非线性光学器件有所帮助。

n this paper,the universal set of degenerate and nearly degenerate four-wavemixing nonlinear coupling equations in plasma is presented in the transmission grati- ng configuration and its exact solution appropriate for arbitrary nonlinear complexcoupling parameters is given. This solution is not only suitable for photorafractivematerials it can also be helpful for further theoretical study of FWM’s phase conju- gation and development of new model nonlinear optical devices.