Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam

被引：14

作者：

Liu, Peng ^{[1
]}

Zeng, Zhinan ^{[1
]}

Li, Yuexun ^{[1
]}

Zhao, Shitong ^{[1
]}

Li, Xiaofang ^{[1
]}

Li, Ruxin ^{[1
]}

Xu, Zhizhan ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 06期

基金：

中国国家自然科学基金;

关键词：

argon; atom-photon collisions; diaphragms; laser beams; optical control; optical focusing; optical harmonic generation; optical phase matching; quantum optics; COHERENCE; PHASE;

D O I：

10.1103/PhysRevA.79.063823

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a scheme to identify and separate the contributions from the short and long electron trajectories in the high-order harmonic generation in argon atoms. The modification of the diving laser field by using a diaphragm prior to focusing is demonstrated to be an effective way of controlling the short and long path contributions in harmonic emission since different macroscopic phase-matching conditions are satisfied, respectively. We show that the short and the long path harmonic emission are separated by adjusting the laser focusing geometry and modifying the laser field. This offers a way of selectively probing and controlling the electron dynamics in intense laser fields.

引用

页数：5

共 32 条

[1] Quasi-phase-matching of high-order harmonics using a modulated atomic density [J].

Auguste, T. ;

Carre, B. ;

Salieres, P. .

PHYSICAL REVIEW A, 2007, 76 (01)

[2] Probing proton dynamics in molecules on an attosecond time scale [J].

Baker, S ;

Robinson, JS ;

Haworth, CA ;

Teng, H ;

Smith, RA ;

Chirila, CC ;

Lein, M ;

Tisch, JWG ;

Marangos, JP .

SCIENCE, 2006, 312 (5772) :424-427

[3] Generalized phase-matching conditions for high harmonics: The role of field-gradient forces [J].

Balcou, P ;

Salieres, P ;

LHuillier, A ;

Lewenstein, M .

PHYSICAL REVIEW A, 1997, 55 (04) :3204-3210

[4] 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

[5] Quantum path contribution to high-order harmonic spectra [J].

Brunetti, E. ;

Issac, R. ;

Jaroszynski, D. A. .

PHYSICAL REVIEW A, 2008, 77 (02)

[6] PLASMA PERSPECTIVE ON STRONG-FIELD MULTIPHOTON IONIZATION [J].

CORKUM, PB .

PHYSICAL REVIEW LETTERS, 1993, 71 (13) :1994-1997

[7] Extreme ultraviolet interferometry measurements with high-order harmonics [J].

Descamps, D ;

Lyngå, C ;

Norin, J ;

L'Huillier, A ;

Wahlström, CG ;

Hergott, JF ;

Merdji, H ;

Salières, P ;

Bellini, M ;

Hänsch, TW .

OPTICS LETTERS, 2000, 25 (02) :135-137

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

Gaarde, MB ;

Schafer, KJ .

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

[9] 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

[10] Single-cycle nonlinear optics [J].

Goulielmakis, E. ;

Schultze, M. ;

Hofstetter, M. ;

Yakovlev, V. S. ;

Gagnon, J. ;

Uiberacker, M. ;

Aquila, A. L. ;

Gullikson, E. M. ;

Attwood, D. T. ;

Kienberger, R. ;

Krausz, F. ;

Kleineberg, U. .

SCIENCE, 2008, 320 (5883) :1614-1617

← 1 2 3 4 →