Electrical conductivity of long plasma channels in air generated by self-guided femtosecond laser pulses

被引：159

作者：

Schillinger, H ^{[1
]}

Sauerbrey, R ^{[1
]}

机构：

[1] Univ Jena, Inst Opt & Quantenelekt, D-07743 Jena, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 1999年 / 68卷 / 04期

关键词：

D O I：

10.1007/s003400050699

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

By slightly focussing similar to 1 TW femtosecond laser pulses, we generated long self-stabilizing filaments in air. Free carriers generated by the pulse move in the electrical field of a bias voltage along these filaments. This is a direct measurement demonstrating the creation of a plasma (n(e) > 10(12) cm(-3)) in the filaments, which plays a crucial role in the interplay of diffraction and self-focussing, leading to the formation of long stable channels. These filaments may have applications for laser-triggered lightning.

引用

页码：753 / 756

页数：4

共 10 条

[1] SELF-CHANNELING OF HIGH-PEAK-POWER FEMTOSECOND LASER-PULSES IN AIR [J].

BRAUN, A ;

KORN, G ;

LIU, X ;

DU, D ;

SQUIER, J ;

MOUROU, G .

OPTICS LETTERS, 1995, 20 (01) :73-75

[2] Moving focus in the propagation of ultrashort laser pulses in air [J].

Brodeur, A ;

Chien, CY ;

Ilkov, FA ;

Chin, SL ;

Kosareva, OG ;

Kandidov, VP .

OPTICS LETTERS, 1997, 22 (05) :304-306

[3] FEMTOSECOND CONTINUA PRODUCED IN GASES [J].

CORKUM, PB ;

ROLLAND, C .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1989, 25 (12) :2634-2639

[4] High-order harmonic generation and quasiphase matching in xenon using self-guided femtosecond pulses [J].

Lange, HR ;

Chiron, A ;

Ripoche, JF ;

Mysyrowicz, A ;

Breger, P ;

Agostini, P .

PHYSICAL REVIEW LETTERS, 1998, 81 (08) :1611-1613

[5] Anomalous long-range propagation of femtosecond laser pulses through air: moving focus or pulse self-guiding? [J].

Lange, HR ;

Grillon, G ;

Ripoche, JF ;

Franco, MA ;

Lamouroux, B ;

Prade, BS ;

Mysyrowicz, A ;

Nibbering, ETJ ;

Chiron, A .

OPTICS LETTERS, 1998, 23 (02) :120-122

[6] Conical emission from self-guided femtosecond pulses in air [J].

Nibbering, ETJ ;

Curley, PF ;

Grillon, G ;

Prade, BS ;

Franco, MA ;

Salin, F ;

Mysyrowicz, A .

OPTICS LETTERS, 1996, 21 (01) :62-64

[7] Ultrabroadband flat continuum generation in multichannel propagation of terrawatt Ti:sapphire laser pulses [J].

Nishioka, H ;

Odajima, W ;

Ueda, K ;

Takuma, H .

OPTICS LETTERS, 1995, 20 (24) :2505-2507

[8]

RAIROUX P, 1998, UNPUB APPL PHYS B

[9]

Woste L., 1997, LASER OPTOELEKTRON, V29, P51

[10] FEMTOSECOND ULTRAVIOLET-LASER PULSE INDUCED LIGHTNING DISCHARGES IN GASES [J].

ZHAO, XM ;

DIELS, JC ;

WANG, CY ;

ELIZONDO, JM .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1995, 31 (03) :599-612

← 1 →