GaAs-based光子晶体纳米腔中等离子体诱导非线性与快速热非线性的相互作用
Interplay of plasma-induced and fast thermal nonlinearities in a GaAs-based photonic crystal nanocavity
摘要：
研究了GaAs基光子晶体腔在比光子器件中典型热弛豫速率快得多的时间尺度上的非线性响应。我们证明了热效应和载流子诱导的非线性效应之间存在强烈的相互作用。我们已经介绍了一个动力学模型，需要两个热弛豫常数，这是在非常好的协议与实验。这些结果对于基于光子晶体的非线性器件处理实际的高重复频率光信号具有重要意义。
英文摘要：
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 thermal 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.
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