Influence of refocusing of femtosecond laser pulses in air on third harmonic generation

被引：4

作者：

Pyragaite, V. ^{[1
]}

Steponkevicius, K. ^{[1
]}

Makauskas, B. ^{[1
]}

Zeimys, E. ^{[1
]}

Vaicaitis, V. ^{[1
]}

机构：

[1] Vilnius Univ, Laser Res Ctr, LT-10223 Vilnius, Lithuania

来源：

OPTICS COMMUNICATIONS | 2015年 / 347卷

关键词：

Third harmonic generation; Spectral shifts; Self-focusing; Femtosecond; 3RD-HARMONIC GENERATION; FILAMENTATION; RADIATION; EMISSION;

D O I：

10.1016/j.optcom.2015.03.006

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The refocusing of femtosecond laser pulses forming the filament in air is studied both numerically and experimentally. The evolution of fundamental as well as third harmonic pulses and spectra during propagation in the filament is discussed. It is shown that the refocusing of the pulse gives rise to enhanced spectral shifts of fundamental and third harmonic waves. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：102 / 107

页数：6

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