Frequency chirp of long electron quantum paths in high-order harmonic generation

被引：11

作者：

Benedetti, E ^{[1
]}

Caumes, JP ^{[1
]}

Sansone, G ^{[1
]}

Stagira, S ^{[1
]}

Vozzi, C ^{[1
]}

Nisoli, M ^{[1
]}

机构：

[1] INFM, CNR, Dept Phys, Natl Lab Ultrafast & Ultraintense Opt Sci,Politec, I-20133 Milan, Italy

来源：

OPTICS EXPRESS | 2006年 / 14卷 / 06期

关键词：

D O I：

10.1364/OE.14.002242

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the first experimental measurement of the spectral broadening of the harmonic emission associated with only the long electron quantum paths as a function of the driving pulse intensity. For such measurements we have estimated the chirp coefficient associated with the long quantum paths, within the strong- field approximation. This coefficient describes how the harmonic phase depends on the intensity of the driving laser field. The dependence of the chirp coefficient on the driving pulse intensity and on the harmonic order, which strongly influence the characteristics of the harmonic radiation, has been experimentally investigated. The experimental values turn out to be in excellent agreement with the results of numerical simulations based on the use of the nonadiabatic saddle-point method. (c) 2006 Optical Society of America.

引用

页码：2242 / 2249

页数：8

共 26 条

[1] The physics of attosecond light pulses [J].

Agostini, P ;

DiMauro, LF .

REPORTS ON PROGRESS IN PHYSICS, 2004, 67 (06) :813-855

[2] Attosecond pulse trains using high-order harmonics [J].

Antoine, P ;

LHuillier, A ;

Lewenstein, M .

PHYSICAL REVIEW LETTERS, 1996, 77 (07) :1234-1237

[3] Temporal coherence of ultrashort high-order harmonic pulses [J].

Bellini, M ;

Lynga, C ;

Tozzi, A ;

Gaarde, MB ;

Hansch, TW ;

L'Huillier, A ;

Wahlstrom, CG .

PHYSICAL REVIEW LETTERS, 1998, 81 (02) :297-300

[4] High-harmonic generation of attosecond pulses in the ''single-cycle'' regime [J].

Christov, IP ;

Murnane, MM ;

Kapteyn, HC .

PHYSICAL REVIEW LETTERS, 1997, 78 (07) :1251-1254

[5] Quantum path distributions for high-order harmonics in rare gas atoms [J].

Gaarde, MB ;

Schafer, KJ .

PHYSICAL REVIEW A, 2002, 65 (03) :4

[6] Space-time considerations in the phase locking of high harmonics [J].

Gaarde, MB ;

Schafer, KJ .

PHYSICAL REVIEW LETTERS, 2002, 89 (21) :213901-213901

[7] Spatiotemporal separation of high harmonic radiation into two quantum path components [J].

Gaarde, MB ;

Salin, F ;

Constant, E ;

Balcou, P ;

Schafer, KJ ;

Kulander, KC ;

L'Huillier, A .

PHYSICAL REVIEW A, 1999, 59 (02) :1367-1373

[8] Coherent soft x-ray generation in the water window with quasi-phase matching [J].

Gibson, EA ;

Paul, A ;

Wagner, N ;

Tobey, R ;

Gaudiosi, D ;

Backus, S ;

Christov, IP ;

Aquila, A ;

Gullikson, EM ;

Attwood, DT ;

Murnane, MM ;

Kapteyn, HC .

SCIENCE, 2003, 302 (5642) :95-98

[9] Direct measurement of light waves [J].

Goulielmakis, E ;

Uiberacker, M ;

Kienberger, R ;

Baltuska, A ;

Yakovlev, V ;

Scrinzi, A ;

Westerwalbesloh, T ;

Kleineberg, U ;

Heinzmann, U ;

Drescher, M ;

Krausz, F .

SCIENCE, 2004, 305 (5688) :1267-1269

[10] Attosecond streak camera -: art. no. 173903 [J].

Itatani, J ;

Quéré, F ;

Yudin, GL ;

Ivanov, MY ;

Krausz, F ;

Corkum, PB .

PHYSICAL REVIEW LETTERS, 2002, 88 (17) :4

← 1 2 3 →