Concatenation of plasma filaments created in air by femtosecond infrared laser pulses

被引：46
|
作者：
Tzortzakis, S [1 ]
Méchain, G [1 ]
Patalano, G [1 ]
Franco, M [1 ]
Prade, B [1 ]
Mysyrowicz, A [1 ]
机构：
[1] ENSTA Ecole Polytech, CNRS, UMR 7639, Lab Opt Appl, F-91761 Palaiseau, France
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2003年 / 76卷 / 05期
关键词：
D O I：
10.1007/s00340-003-1147-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the first observation of the attachment of two single plasma filaments created collinearly in the atmosphere by IR femtosecond laser pulses. The linked filamentary structure is electrically conductive and emits sub-THz radiation over its entire length. Concatenation is achieved only for a specific time ordering between the two initial laser pulses. The pulse producing the filament closer to the laser source must be retarded with respect to the other pulse. This special time ordering is attributed to the acceleration of light in a self-guided pulse.
引用
收藏
页码：609 / 612
页数：4
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