Higher-Order Kerr Terms Allow Ionization-Free Filamentation in Gases

被引：228

作者：

Bejot, P. ^{[1
,2
]}

Kasparian, J. ^{[1
]}

Henin, S. ^{[1
]}

Loriot, V. ^{[2
]}

Vieillard, T. ^{[2
]}

Hertz, E. ^{[2
]}

Faucher, O. ^{[2
]}

Lavorel, B. ^{[2
]}

Wolf, J. -P. ^{[1
]}

机构：

[1] Univ Geneva, GAP Biophoton, CH-1211 Geneva 4, Switzerland

[2] Univ Bourgogne, Lab ICB, UMR 5209, CNRS, F-21078 Dijon, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 10期

关键词：

FEMTOSECOND LASER-PULSES; TRANSPARENT MEDIA; AIR; LIGHT; PROPAGATION; COMPRESSION; INTENSITY; PHYSICS;

D O I：

10.1103/PhysRevLett.104.103903

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that higher-order nonlinear indices (n(4), n(6), n(8), n(10)) provide the main defocusing contribution to self-channeling of ultrashort laser pulses in air and argon at 800 nm, in contrast with the previously accepted mechanism of filamentation where plasma was considered as the dominant defocusing process. Their consideration allows us to reproduce experimentally observed intensities and plasma densities in self-guided filaments.

引用

页数：4

共 24 条

[1] White-light continuum generation and filamentation during the propagation of ultra-short laser pulses in air [J].

Aközbek, N ;

Scalora, M ;

Bowden, CM ;

Chin, SL .

OPTICS COMMUNICATIONS, 2001, 191 (3-6) :353-362

[2] Intensity clamping and re-focusing of intense femtosecond laser pulses in nitrogen molecular gas [J].

Becker, A ;

Aközbek, N ;

Vijayalakshmi, K ;

Oral, E ;

Bowden, CM ;

Chin, SL .

APPLIED PHYSICS B-LASERS AND OPTICS, 2001, 73 (03) :287-290

[3] Laser noise compression by filamentation at 400 nm in argon [J].

Bejot, Pierre ;

Bonnet, Christophe ;

Boutou, Veronique ;

Wolf, Jean-Pierre .

OPTICS EXPRESS, 2007, 15 (20) :13295-13309

[4] Ultrashort filaments of light in weakly ionized, optically transparent media [J].

Berge, L. ;

Skupin, S. ;

Nuter, R. ;

Kasparian, J. ;

Wolf, J-P .

REPORTS ON PROGRESS IN PHYSICS, 2007, 70 (10) :1633-1713

[5] 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

[6] Dynamics of filament formation in a Kerr medium [J].

Centurion, M ;

Pu, Y ;

Tsang, MK ;

Psaltis, D .

PHYSICAL REVIEW A, 2005, 71 (06)

[7] The propagation of powerful femtosecond laser pulses in optical media:: physics, applications, and new challenges [J].

Chin, SL ;

Hosseini, SA ;

Liu, W ;

Luo, Q ;

Théberge, F ;

Aközbek, N ;

Becker, A ;

Kandidov, VP ;

Kosareva, OG ;

Schroeder, H .

CANADIAN JOURNAL OF PHYSICS, 2005, 83 (09) :863-905

[8] Femtosecond filamentation in transparent media [J].

Couairon, A. ;

Mysyrowicz, A. .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2007, 441 (2-4) :47-189

[9] Dynamics of femtosecond filamentation from saturation of self-focusing laser pulses [J].

Couairon, A .

PHYSICAL REVIEW A, 2003, 68 (01) :4

[10] Light filaments without self-channeling [J].

Dubietis, A ;

Gaizauskas, E ;

Tamosauskas, G ;

Di Trapani, P .

PHYSICAL REVIEW LETTERS, 2004, 92 (25) :253903-1

← 1 2 3 →