Role of quantum trajectory in high-order harmonic generation in the Keldysh multiphoton regime

被引:9
作者
Li, Peng-Cheng [1 ,2 ,3 ]
Jiao, Yuan-Xiang [1 ]
Zhou, Xiao-Xin [1 ]
Chu, Shih-I [2 ,3 ]
机构
[1] Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China
[2] Univ Kansas, Dept Chem, Lawrence, KS 66045 USA
[3] Natl Taiwan Univ, Dept Phys, Ctr Quantum Sci & Engn, Taipei 10617, Taiwan
来源
OPTICS EXPRESS | 2016年 / 24卷 / 13期
基金
中国国家自然科学基金;
关键词
LASER FIELD; IONIZATION; DYNAMICS; PHYSICS;
D O I
10.1364/OE.24.014352
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a systematic study of spectral and temporal structure of high-order harmonic generation (HHG) by solving accurately the time-dependent Schrodinger equation for a hydrogen atom in the multiphoton regime where the Keldysh parameter is greater unity. Combining with a time-frequency transform and an extended semiclassical analysis, we explore the role of quantum trajectory in HHG. We find that the time-frequency spectra of the HHG plateau near cutoff exhibit a decrease in intensity associated with the short-and long-trajectories when the ionization process is pushed from the multiphoton regime into the tunneling regime. This implies that the harmonic emission spectra in the region of the HHG plateau near and before the cutoff are suppressed. To see the generality of this prediction, we also present a time-dependent density-functional theoretical study of the effect of correlated multi-electron responses on the spectral and temporal structure of the HHG plateau of the Ar atom. (C) 2016 Optical Society of America
引用
收藏
页码:14352 / 14361
页数:10
相关论文
共 27 条
  • [1] TUNNELING IONIZATION OF NOBLE-GASES IN A HIGH-INTENSITY LASER FIELD
    AUGST, S
    STRICKLAND, D
    MEYERHOFER, DD
    CHIN, SL
    EBERLY, JH
    [J]. PHYSICAL REVIEW LETTERS, 1989, 63 (20) : 2212 - 2215
  • [2] Probing proton dynamics in molecules on an attosecond time scale
    Baker, S
    Robinson, JS
    Haworth, CA
    Teng, H
    Smith, RA
    Chirila, CC
    Lein, M
    Tisch, JWG
    Marangos, JP
    [J]. SCIENCE, 2006, 312 (5772) : 424 - 427
  • [3] Creation and control of a single coherent attosecond xuv pulse by few-cycle intense laser pulses
    Carrera, Juan J.
    Tong, X. M.
    Chu, Shih-I
    [J]. PHYSICAL REVIEW A, 2006, 74 (02):
  • [4] Coherent phase-matched VUV generation by field-controlled bound states
    Chini, Michael
    Wang, Xiaowei
    Cheng, Yan
    Wang, He
    Wu, Yi
    Cunningham, Eric
    Li, Peng-Cheng
    Heslar, John
    Telnov, Dmitry A.
    Chu, Shih-I
    Chang, Zenghu
    [J]. NATURE PHOTONICS, 2014, 8 (06) : 437 - 441
  • [5] Attosecond science
    Corkum, P. B.
    Krausz, Ferenc
    [J]. NATURE PHYSICS, 2007, 3 (06) : 381 - 387
  • [6] PLASMA PERSPECTIVE ON STRONG-FIELD MULTIPHOTON IONIZATION
    CORKUM, PB
    [J]. PHYSICAL REVIEW LETTERS, 1993, 71 (13) : 1994 - 1997
  • [7] Momentum partition between constituents of exotic atoms during laser-induced tunneling ionization
    Cricchio, Dario
    Fiordilino, Emilio
    Hatsagortsyan, Karen Z.
    [J]. PHYSICAL REVIEW A, 2015, 92 (02):
  • [8] Flandrin Patrick, 1998, Time-Frequency/Time-Scale Analysis, V1st
  • [9] Soft X-ray-driven femtosecond molecular dynamics
    Gagnon, Etienne
    Ranitovic, Predrag
    Tong, Xiao-Min
    Cocke, C. L.
    Murnane, Margaret M.
    Kapteyn, Henry C.
    Sandhu, Arvinder S.
    [J]. SCIENCE, 2007, 317 (5843) : 1374 - 1378
  • [10] Attosecond imaging of molecular electronic wavepackets
    Haessler, S.
    Caillat, J.
    Boutu, W.
    Giovanetti-Teixeira, C.
    Ruchon, T.
    Auguste, T.
    Diveki, Z.
    Breger, P.
    Maquet, A.
    Carre, B.
    Taieb, R.
    Salieres, P.
    [J]. NATURE PHYSICS, 2010, 6 (03) : 200 - 206