Conical forward THz emission from femtosecond-laser-beam filamentation in air
Conical forward THz emission from femtosecond-laser-beam filamentation in air
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DOI：
10.1103/physrevlett.98.235002
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发表时间：
2007-06-08
影响因子：
8.6
通讯作者：
Tikhonchuk, V. T.
中科院分区：
文献类型：
--
作者：
D'Amico, C.;Houard, A.;Tikhonchuk, V. T.
我们归因于一个强大的前向太赫兹发射飞秒激光灯丝在空气中的过渡切伦科夫发射从后面的电离前在光速移动的等离子体空间电荷。远距离目标可以很容易地被这种新的太赫兹辐射源照射。
We attribute a strong forward directed THz emission from femtosecond laser filaments in air to a transition-Cherenkov emission from the plasma space charge moving behind the ionization front at light velocity. Distant targets can be easily irradiated by this new source of THz radiation.