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Title: Pathway of bichromatic high-order harmonic generation

Abstract

We present a theoretical study of the pathway of harmonic generation in bichromatic linearly polarized laser fields. A 'harmonic-collapse' phenomenon is observed in the power spectrum for a particular value of the amplitude ratio of two components of the external field. We employ an offset frequency shift to the additional field to distinguish the harmonic pathway and then to explain the harmonic-collapse phenomenon. The harmonic intensity as a function of the relative amplitude ratio and, furthermore, the fine structure of the harmonic spectrum can be well understood on the basis of a pathway analysis.

Authors:
;  [1]
  1. Department of Physics, Wuhan University, Wuhan 430072 (China)
Publication Date:
OSTI Identifier:
20982424
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.75.035801; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; AMPLITUDES; FINE STRUCTURE; FUNCTIONS; HARMONIC GENERATION; LASER RADIATION; SPECTRA; SPECTRAL SHIFT

Citation Formats

Cai, Jun, and Qiao, Haoxue. Pathway of bichromatic high-order harmonic generation. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.035801.
Cai, Jun, & Qiao, Haoxue. Pathway of bichromatic high-order harmonic generation. United States. doi:10.1103/PHYSREVA.75.035801.
Cai, Jun, and Qiao, Haoxue. Thu . "Pathway of bichromatic high-order harmonic generation". United States. doi:10.1103/PHYSREVA.75.035801.
@article{osti_20982424,
title = {Pathway of bichromatic high-order harmonic generation},
author = {Cai, Jun and Qiao, Haoxue},
abstractNote = {We present a theoretical study of the pathway of harmonic generation in bichromatic linearly polarized laser fields. A 'harmonic-collapse' phenomenon is observed in the power spectrum for a particular value of the amplitude ratio of two components of the external field. We employ an offset frequency shift to the additional field to distinguish the harmonic pathway and then to explain the harmonic-collapse phenomenon. The harmonic intensity as a function of the relative amplitude ratio and, furthermore, the fine structure of the harmonic spectrum can be well understood on the basis of a pathway analysis.},
doi = {10.1103/PHYSREVA.75.035801},
journal = {Physical Review. A},
number = 3,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}