Pulse shortening due to filamentation in transparent medium

被引：34

作者：

Kosareva, O. G. ^{[1
]}

Murtazin, I. N.

Panov, N. A.

Savel'ev, A. B.

Kandidov, V. P.

Chin, S. L.

机构：

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

[2] Univ Laval, Ctr Opt Photon & Laser, Dept Phys, Ste Foy, PQ G1K 7P4, Canada

来源：

LASER PHYSICS LETTERS | 2007年 / 4卷 / 02期

关键词：

ultrashort pulse; self-compression; filamentation;

D O I：

10.1002/lapl.200610081

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Spatial contraction of high-peak-power femtosecond pulse in air leads to its simultaneous shortening in time domain. Numerical simulations in the slowly evolving wave approximation show that the full width at half maximum duration of the 45 fs 800 nm pulse becomes similar to 8 fs as soon as the intensity reaches the ionization threshold. At this propagation distance the compressed pulse accumulates maximum of its energy that is similar to 4% of the initial pulse energy. Higher than the second orders of material dispersion decrease the maximum possible energy achieved in the compressed pulse.

引用

页码：126 / 132

页数：7

共 12 条

[1]

Akhmanov S. A., 1992, Optics of Femtosecond Laser Pulses

[2] 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

[3] Self-focusing of few-cycle light pulses in dielectric media [J].

Berkovsky, AN ;

Kozlov, SA ;

Shpolyanskiy, YA .

PHYSICAL REVIEW A, 2005, 72 (04)

[4] Nonlinear optical pulse propagation in the single-cycle regime [J].

Brabec, T ;

Krausz, F .

PHYSICAL REVIEW LETTERS, 1997, 78 (17) :3282-3285

[5] Femtosecond pulse compression in pressure-gas cells filled with argon -: art. no. 066603 [J].

Champeaux, S ;

Bergé, L .

PHYSICAL REVIEW E, 2003, 68 (06)

[6] Influence of various physical factors on the generation of conical emission in the propagation of high-power femtosecond laser pulses in air [J].

Golubtsov, IS ;

Kosareva, OG .

JOURNAL OF OPTICAL TECHNOLOGY, 2002, 69 (07) :462-467

[7] Generation of intense, carrier-envelope phase-locked few-cycle laser pulses through filamentation [J].

Hauri, CP ;

Kornelis, W ;

Helbing, FW ;

Heinrich, A ;

Couairon, A ;

Mysyrowicz, A ;

Biegert, J ;

Keller, U .

APPLIED PHYSICS B-LASERS AND OPTICS, 2004, 79 (06) :673-677

[8] Nonlinear-optical transformation of a high-power femtosecond laser pulse in air [J].

Kandidov, VP ;

Kosareva, OG ;

Koltun, AA .

QUANTUM ELECTRONICS, 2003, 33 (01) :69-75

[9] Direct measurement of the critical power of femtosecond Ti:sapphire laser pulse in air [J].

Liu, W ;

Chin, SL .

OPTICS EXPRESS, 2005, 13 (15) :5750-5755

[10] Sub-10 fs, multimillijoule laser system [J].

Oishi, Y ;

Suda, A ;

Midorikawa, K ;

Kannari, F .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2005, 76 (09)

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