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Monte Carlo study of the screening effect of carriers on terahertz radiation from InAs with high excitation intensity

机译:蒙特卡洛研究载流子对高激发强度InAs太赫兹辐射的屏蔽作用

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摘要

The dynamics of terahertz radiation from InAs were investigated by the ensemble Monte Carlo simulation method. Our simulations indicated that under high-intensity excitation it is the ratio of carrier screening to the carrier-polar optical phonon scattering that has an obvious influence in high-frequency components of terahertz pulses; that is, the amplitudes of high-frequency spectra are reduced with increased excitation intensity. Our calculated results qualitatively reproduce recently published experimental data.
机译:通过集成蒙特卡罗模拟方法研究了来自InAs的太赫兹辐射的动力学。我们的模拟表明,在高强度激发下,载流子屏蔽与载流子极性光子声子散射之比对太赫兹脉冲的高频分量有明显影响。即,高频频谱的振幅随着激发强度的增加而减小。我们的计算结果定性地再现了最近发表的实验数据。

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