Numerical simulation of nonlinear field distributions in two-dimensional optical superlattices.
Numerical simulation of nonlinear field distributions in two-dimensional optical superlattices.
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DOI：
10.1364/oe.20.001261
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发表时间：
2012-01
期刊：
影响因子：
3.8
通讯作者：
Mingru Zhou;Jun Ma;Chao Zhang-;Yiqiang Qin
中科院分区：
文献类型：
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作者：
Mingru Zhou;Jun Ma;Chao Zhang-;Yiqiang Qin
提出了一种计算二维光学超晶格非线性光学过程的真实的空间有限差分方法。以局域准相位匹配条件下的聚焦二次谐波为例进行了计算。利用该方法可以很好地模拟基波和谐波的场分布，其结果与前人的理论预测和实验研究结果吻合较好。结果表明，该方法是分析光学超晶格非线性过程的一种简单、快速的方法。
A finite difference method in real space is presented for calculating nonlinear optical processes in two-dimensional optical superlattices. The focused second-harmonic generation under the local quasi-phase-matched condition is calculated as an example. The field distribution of both the fundamental and the harmonic wave can be simulated well using this method, and the result agrees well with previous theoretical predictions and experimental studies. It is shown that this method is a simple and rapid technique to analysis nonlinear processes in optical superlattices.