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光折变非线性局域表面波的形成与稳定性分析

, PP. 209-212

Keywords: 非线性光学,局域表面波,数值模拟,光折变晶体,分步傅里叶法

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Abstract:

在建立了光波在线性电介质与光折变晶体界面传播时的二阶常微分方程基础上,通过数值模拟的方法研究了光折变非线性局域表面波在线性电介质与光折变晶体界面处的形成,并讨论了局域表面波在界面处传播时的稳定性。研究结果表明,传播常数与波导参数对局域表面波模的波形有一定影响,当传播常数增大时,表面波模的阶数会随之增大,波振幅的最大值会随之减小,光波的总能量增加。利用分步傅里叶变换法对研究得到的局域表面波进行传输演化发现,这种波在线性电介质与光折变晶体界面可以稳定地传输。

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[17]  作者简介:陈卫军 男, 1988年生, 博士, 研究员, 从事非线性光学、光孤子及光折变表面波研究。卢克清 男, 1956年生, 教授, 博士生导师, 研究方向为非线性光学和光孤子理论。

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