Full Current Model for Terahertz Wave Generation from Femtosecond Laser Filament Under External Electric Fields
Guangxue xuebao(2022)
Abstract
针对外加横、纵直流电场作用下的单色飞秒激光成丝辐射太赫兹波现象,提出了一种将微观等离子体电流振荡与宏观电流传输线辐射相结合的全电流模型,旨在解释外电场作用下太赫兹波增强、空间分布演变等辐射特征。与现有渡越-切连科夫辐射理论相比,所提出的全电流模型在等光速条件下可实现相位匹配,物理图像清晰、公式简洁,且能很好地复现实验结果。
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