Attosecond pulse walk-off in high-order harmonic generation

被引：11

作者：

Kroon, D. ^{[1
]}

Guenot, D. ^{[1
]}

Kotur, M. ^{[1
]}

Balogh, E. ^{[2
]}

Larsen, E. W. ^{[1
]}

Heyl, C. M. ^{[1
]}

Miranda, M. ^{[1
]}

Gisselbrecht, M. ^{[1
]}

Mauritsson, J. ^{[1
]}

Johnsson, P. ^{[1
]}

Varju, K. ^{[2
]}

L'Huillier, A. ^{[1
]}

Arnold, C. L. ^{[1
]}

机构：

[1] Lund Univ, Dept Phys, S-22100 Lund, Sweden

[2] Univ Szeged, Dept Opt & Quantum Elect, H-6720 Szeged, Hungary

来源：

OPTICS LETTERS | 2014年 / 39卷 / 07期

基金：

匈牙利科学研究基金会; 欧洲研究理事会; 瑞典研究理事会;

关键词：

IONIZATION;

D O I：

10.1364/OL.39.002218

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the influence of the generation conditions on the group delay of attosecond pulses in high-order harmonic generation in gases. The group delay relative to the fundamental field is found to decrease with increasing gas pressure in the generation cell, reflecting a temporal walk-off due to the dispersive properties of the nonlinear medium. This effect is well reproduced using an on-axis phase-matching model of high-order harmonic generation in an absorbing gas. (C) 2014 Optical Society of America

引用

页码：2218 / 2221

页数：4

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