Third-harmonic generation in air by use of femtosecond radiation in tight-focusing conditions

被引：37
作者：
Ganeev, RA
Suzuki, M
Baba, M
Kuroda, H
Kulagin, IA
机构：
[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
[2] Naucho Proizvodstvennoe Obedinenie Akad, Tashkent 700125, Uzbekistan
来源：
APPLIED OPTICS | 2006年 / 45卷 / 04期
关键词：
D O I：
10.1364/AO.45.000748
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Third-harmonic generation (THG) in air in tight-focusing conditions is presented. Variation of the pulse duration supplied optimal conditions for THG by femtosecond pulses that varied in the range 110-1300 fs. We show that this third-harmonic generation was caused by Kerr-induced phase variations of fundamental and harmonic beams. Various characteristics (laser intensity, focusing conditions, pulse duration, air pressure, etc.) of THG in air were analyzed to optimize this process. The THG conversion efficiency of 795 nm, 300 fs radiation was 1 X 10(-3). The harmonic radiation did not show considerable disruption of its spectral and spatial distribution in tight focusing conditions for intensities as high as 5 X 10(14) W cm(-2). (c) 2006 Optical Society of America.
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收藏
页码：748 / 755
页数：8
相关论文
共 21 条
[1]   Continuum generation of the third-harmonic pulse generated by an intense femtosecond IR laser pulse in air [J].
Aközbek, N ;
Becker, A ;
Scalora, M ;
Chin, SL ;
Bowden, CM .
APPLIED PHYSICS B-LASERS AND OPTICS, 2003, 77 (2-3) :177-183
[2]   Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses -: art. no. 143901 [J].
Aközbek, N ;
Iwasaki, A ;
Becker, A ;
Scalora, M ;
Chin, SL ;
Bowden, CM .
PHYSICAL REVIEW LETTERS, 2002, 89 (14)
[3]   16-fs, 1-mu J ultraviolet pulses generated by third-harmonic conversion In air [J].
Backus, S ;
Peatross, J ;
Zeek, Z ;
Rundquist, A ;
Taft, G ;
Murnane, MM ;
Kapteyn, HC .
OPTICS LETTERS, 1996, 21 (09) :665-667
[4]   Intense few-cycle laser fields: Frontiers of nonlinear optics [J].
Brabec, T ;
Krausz, F .
REVIEWS OF MODERN PHYSICS, 2000, 72 (02) :545-591
[5]  
DRABOVICH KN, 1985, KVANTOVAYA ELEKTRON+, V12, P616
[6]   Saturation of third-harmonic generation in a plasma of self-induced optical breakdown due to the self-action of 80-fs light pulses [J].
Fedotov, AB ;
Koroteev, NI ;
Loy, MMT ;
Xiao, X ;
Zheltikov, AM .
OPTICS COMMUNICATIONS, 1997, 133 (1-6) :587-595
[7]   Third-harmonic generation in a laser-pre-excited gas: the role of excited-state neutrals [J].
Fedotov, AB ;
Naumov, AN ;
Silin, VP ;
Uryupin, SA ;
Zheltikov, AM ;
Tarasevitch, AP ;
von der Linde, D .
PHYSICS LETTERS A, 2000, 271 (5-6) :407-412
[8]   OPTICAL HARMONIC-GENERATION IN MEDIA WITH POSITIVE DISPERSION [J].
GANEEV, RA ;
GORBUSHIN, VV ;
KULAGIN, IA ;
USMANOV, T .
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1986, 41 (01) :69-71
[9]  
GANEEV RA, 1982, SOC J QUANTUM ELECT, V9, P2508
[10]   3RD-HARMONIC GENERATION IN XENON IN A PULSED JET AND A GAS CELL [J].
LHUILLIER, A ;
LOMPRE, LA ;
FERRAY, M ;
LI, XF ;
MAINFRAY, G ;
MANUS, C .
EUROPHYSICS LETTERS, 1988, 5 (07) :601-605
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