skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Analysis of effects of macroscopic propagation and multiple molecular orbitals on the minimum in high-order harmonic generation of aligned CO{sub 2}

Abstract

We report theoretical calculations of the effect of the multiple-orbital contribution in high-order harmonic generation (HHG) of aligned CO{sub 2} with the inclusion of macroscopic propagation of harmonic fields in the medium. Our results show very good agreement with recent experiments for the dynamics of the minimum in HHG spectra as laser intensity or alignment angle changes. Calculations are carried out to check how the position of the minimum in HHG spectra depends on the degrees of molecular alignment, laser-focusing conditions, and the effects of alignment-dependent ionization rates of the different molecular orbitals. These analyses help to explain why the minima observed in different experiments may vary.

Authors:
; ;  [1]
  1. J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506-2604 (United States)
Publication Date:
OSTI Identifier:
21546792
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 83; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.83.053409; (c) 2011 American Institute of Physics; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ALIGNMENT; CARBON DIOXIDE; FOCUSING; HARMONIC GENERATION; IONIZATION; LASERS; MOLECULES; SPECTRA; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; FREQUENCY MIXING; OXIDES; OXYGEN COMPOUNDS

Citation Formats

Jin, Cheng, Le, Anh-Thu, and Lin, C. D. Analysis of effects of macroscopic propagation and multiple molecular orbitals on the minimum in high-order harmonic generation of aligned CO{sub 2}. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.83.053409.
Jin, Cheng, Le, Anh-Thu, & Lin, C. D. Analysis of effects of macroscopic propagation and multiple molecular orbitals on the minimum in high-order harmonic generation of aligned CO{sub 2}. United States. doi:10.1103/PHYSREVA.83.053409.
Jin, Cheng, Le, Anh-Thu, and Lin, C. D. Sun . "Analysis of effects of macroscopic propagation and multiple molecular orbitals on the minimum in high-order harmonic generation of aligned CO{sub 2}". United States. doi:10.1103/PHYSREVA.83.053409.
@article{osti_21546792,
title = {Analysis of effects of macroscopic propagation and multiple molecular orbitals on the minimum in high-order harmonic generation of aligned CO{sub 2}},
author = {Jin, Cheng and Le, Anh-Thu and Lin, C. D.},
abstractNote = {We report theoretical calculations of the effect of the multiple-orbital contribution in high-order harmonic generation (HHG) of aligned CO{sub 2} with the inclusion of macroscopic propagation of harmonic fields in the medium. Our results show very good agreement with recent experiments for the dynamics of the minimum in HHG spectra as laser intensity or alignment angle changes. Calculations are carried out to check how the position of the minimum in HHG spectra depends on the degrees of molecular alignment, laser-focusing conditions, and the effects of alignment-dependent ionization rates of the different molecular orbitals. These analyses help to explain why the minima observed in different experiments may vary.},
doi = {10.1103/PHYSREVA.83.053409},
journal = {Physical Review. A},
issn = {1050-2947},
number = 5,
volume = 83,
place = {United States},
year = {2011},
month = {5}
}