Interplay of plasma-induced and fast thermal nonlinearities in a GaAs-based photonic crystal nanocavity
Interplay of plasma-induced and fast thermal nonlinearities in a GaAs-based photonic crystal nanocavity
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DOI：
10.1103/physreva.79.043818
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发表时间：
2008-12
影响因子：
2.9
通讯作者：
A. Rossi;M. Lauritano;Sylvain Combri'e;Q. Tran;C. Husko
中科院分区：
文献类型：
--
作者：
A. Rossi;M. Lauritano;Sylvain Combri'e;Q. Tran;C. Husko
我们研究了比光子器件中典型的热弛豫速率快得多的时间尺度上的GaAs基光子晶体腔的非线性响应。我们展示了热效应和载流子诱导的非线性效应之间的强烈相互作用。我们引入了一个含有两个热弛豫常数的动力学模型，该模型与实验非常吻合。这些结果将对基于光子晶体的用于处理实际高重复频率光信号的非线性器件具有重要意义。
We investigate the nonlinear response of GaAs-based photonic crystal cavities at time scales which are much faster than the typical thermal relaxation rate in photonic devices. We demonstrate a strong interplay between thermally and carrier-induced nonlinear effects. We have introduced a dynamical model entailing two thermal relaxation constants which is in very good agreement with experiments. These results will be very important for photonic crystal-based nonlinear devices intended to deal with practical high repetition rate optical signals.