双色飞秒激光击穿太赫兹辐射的光谱和偏振:理论与实验

2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) Pub Date : 2015-11-12 DOI:10.1109/IRMMW-THZ.2015.7327528

V. Andreeva, M. Esaulkov, O. Kosareva, V. Makarov, N. Panov, D. Shipilo, A. Shkurinov, P. Solyankin

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引用次数: 1

摘要

本文对双色飞秒激光击穿的太赫兹源等离子体的光谱、空间和偏振特征进行了全面的实验和数值研究。我们通过实验证明太赫兹辐射中高频成分的存在与中性气体分子的响应有关。考虑到通过等离子体传播的光脉冲的相位和偏振的演变，可以考虑到实验观察到的发射脉冲的偏振和光谱。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Spectrum and polarization of THz radiation from two-color femtosecond laser breakdown: Theory and experiment

We present a comprehensive experimental and numerical study of spectral, spatial and polarization features of the widely used THz source - plasma of optical breakdown by a two-color femtosecond laser. We show experimentally presence of high-frequency component of THz radiation related to response of neutral gas molecules. Taking into account evolution of phase and polarization of optical pulses propagating through plasma allows to account for the experimentally observed polarization and spectrum of the emitted pulse.

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来源期刊

2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)

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