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
基金
俄罗斯科学基金会; 俄罗斯基础研究基金会; 奥地利科学基金会;
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
收藏
页码:4659 / 4662
页数:4
相关论文
共 50 条