在光折变晶体中简并四波混频的分析和计算

计算物理 ›› 1991, Vol. 8 ›› Issue (4): 373-376.

在光折变晶体中简并四波混频的分析和计算

符昌海, 李庆行, 余振新

中山大学激光与光谱学研究所, 广州 510275

收稿日期:1990-11-19 修回日期:1991-04-06 出版日期:1991-12-25 发布日期:1991-12-25

ANALYSIS AND COMPUTATION OF DEGENERATE FOUR-WAVE MIXING IN PHOTOREFRACTIVE CRYSTALS

Fu Changhai, Li Qingxing, Yu Zhenxin

Institute of Laser and Spectroscopy Zhong Shan University Guanzhou

Received:1990-11-19 Revised:1991-04-06 Online:1991-12-25 Published:1991-12-25

摘要/Abstract

摘要： 本文采用修正边值法研究在光折变晶体中简并四波混频位相共轭。其对处理分离边值问题较简易。计算结果表明:位相共轭反射系数(PCR)随着晶体的线性吸收增大面非线性地减小;光波入射角及光强分配比例也均对PCR有影响等。

关键词: 光折变晶体DFWM, 修正边值法和PCR

Abstract: A boundary correction method is proposed for the numerical solution of the degenerate four-wave mixing in photorefractive crystals. The present method can easily deal with the problem of split boundary conditions. Results from the present method shows that the incidence angles of and ratio of pump beam intensity in the PCR lead to a significant improvement; The line absorption of the interacting beams by the crystals is nonlinear in the PCR.

Key words: DFWM, boundary correction method and PCR

符昌海, 李庆行, 余振新. 在光折变晶体中简并四波混频的分析和计算[J]. 计算物理, 1991, 8(4): 373-376.

Fu Changhai, Li Qingxing, Yu Zhenxin. ANALYSIS AND COMPUTATION OF DEGENERATE FOUR-WAVE MIXING IN PHOTOREFRACTIVE CRYSTALS[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1991, 8(4): 373-376.