Conical forward THz emission from femtosecond-laser-beam filamentation in air

被引：498

作者：

D'Amico, C.

Houard, A.

Franco, M.

Prade, B.

Mysyrowicz, A. ^{[1
]}

Couairon, A.

Tikhonchuk, V. T.

机构：

[1] Ecole Polytech, ENSTA, Lab Opt Appl, F-91761 Palaiseau, France

[2] Ecole Polytech, CNRS, Ctr Phys Theor, F-91128 Palaiseau, France

[3] Univ Bordeaux 1, CEA, CNRS, UMR 5107,Ctr Lasers Intenses & Applicat, F-33405 Talence, France

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.98.235002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

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页数：4

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