Post-filament self-trapping of ultrashort laser pulses

被引：29

作者：

Mitrofanov, A. V. ^{[1
,2
,3
]}

Voronin, A. A. ^{[1
,2
]}

Sidorov-Biryukov, D. A. ^{[1
,2
]}

Andriukaitis, G. ^{[4
]}

Floery, T. ^{[4
]}

Pugzlys, A. ^{[4
]}

Fedotov, A. B. ^{[1
,2
]}

Mikhailova, J. M. ^{[1
,6
]}

Panchenko, V. Ya. ^{[3
]}

Baltuska, A. ^{[4
]}

Zheltikov, A. M. ^{[1
,2
,5
]}

机构：

[1] Russian Quantum Ctr, Skolkovo 1430125, Moscow Region, Russia

[2] Moscow MV Lomonosov State Univ, Ctr Int Laser, Phys Dept, Moscow 119992, Russia

[3] Russian Acad Sci, Inst Laser & Informat Technol, Shatura 140700, Moscow Region, Russia

[4] Vienna Univ Technol, Photon Inst, A-1040 Vienna, Austria

[5] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

[6] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA

来源：

OPTICS LETTERS | 2014年 / 39卷 / 16期

基金：

奥地利科学基金会; 俄罗斯基础研究基金会; 俄罗斯科学基金会;

关键词：

OPTICAL BEAMS; TRANSPARENT MEDIA; AIR; LIGHT; GENERATION; IONIZATION; RANGE; WAVE;

D O I：

10.1364/OL.39.004659

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Laser filamentation is understood to be self-channeling of intense ultrashort laser pulses achieved when the self-focusing because of the Kerr nonlinearity is balanced by ionization-induced defocusing. Here, we show that, right behind the ionized region of a laser filament, ultrashort laser pulses can couple into a much longer light channel, where a stable self-guiding spatial mode is sustained by the saturable self-focusing nonlinearity. In the limiting regime of negligibly low ionization, this post-filamentation beam dynamics converges to a large-scale beam self-trapping scenario known since the pioneering work on saturable self-focusing nonlinearities. (C) 2014 Optical Society of America

引用

页码：4659 / 4662

页数：4

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