We experimentally demonstrate that terahertz emission yield from single-color filament plasma can be increased by more than 3 times by ordinary laser pulse chirping at constant energy. The enhancement is spectrally selective, for each terahertz frequency there is an optimal laser pulse duration providing maximal terahertz emission. This provides a prospective tool for tailoring both spectrum and energy of the terahertz emission from a single-color filament.

中文翻译：

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通过啁啾激光脉冲增强单色丝化过程中的太赫兹发射


我们通过实验证明，通过以恒定能量啁啾的普通激光脉冲，单色灯丝等离子体的太赫兹发射率可以提高 3 倍以上。这种增强是光谱选择性的，对于每个太赫兹频率，都有一个最佳的激光脉冲持续时间，可提供最大的太赫兹发射。这为定制单色灯丝太赫兹发射的光谱和能量提供了一种前瞻性工具。