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

Title: High-order harmonic spectroscopy of the Cooper minimum in argon: Experimental and theoretical study

Abstract

We study the Cooper minimum in high-order-harmonic generation from argon atoms by using long wavelength laser pulses. We find that the minimum in high-order-harmonic spectra is systematically shifted with respect to total photoionization cross section measurements. We use a semiclassical theoretical approach based on classical trajectory Monte Carlo and quantum electron scattering methods to model the experiment. Our study reveals that the shift between photoionization and high-order-harmonic emission is due to several effects: the directivity of the recombining electrons and emitted polarization, and the shape of the recolliding electron wave packet.

Authors:
; ; ; ; ; ; ; ; ;  [1]; ;  [2]
  1. CELIA, UMR5107 (Universite Bordeaux 1 - CNRS - CEA) 351, cours de la liberation - F-33405 Talence Cedex France (France)
  2. Laboratoire Collisions Agregats Reactivite, (IRSAMC), UPS, Universite de Toulouse and CNRS, UMR 5589, F-31062 Toulouse (France)
Publication Date:
OSTI Identifier:
21546784
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 83; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.83.053401; (c) 2011 American Institute of Physics; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ARGON; CROSS SECTIONS; ELECTRON EMISSION; ELECTRONS; HARMONIC GENERATION; LASERS; MONTE CARLO METHOD; PHOTOIONIZATION; POLARIZATION; PULSES; SCATTERING; SEMICLASSICAL APPROXIMATION; SPECTRA; SPECTROSCOPY; WAVE PACKETS; WAVELENGTHS; APPROXIMATIONS; CALCULATION METHODS; ELEMENTARY PARTICLES; ELEMENTS; EMISSION; FERMIONS; FLUIDS; FREQUENCY MIXING; GASES; IONIZATION; LEPTONS; NONMETALS; RARE GASES

Citation Formats

Higuet, J., Ruf, H., Constant, E., Cormier, E., Descamps, D., Mevel, E., Petit, S., Pons, B., Mairesse, Y., Fabre, B., Thire, N., and Cireasa, R. High-order harmonic spectroscopy of the Cooper minimum in argon: Experimental and theoretical study. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.83.053401.
Higuet, J., Ruf, H., Constant, E., Cormier, E., Descamps, D., Mevel, E., Petit, S., Pons, B., Mairesse, Y., Fabre, B., Thire, N., & Cireasa, R. High-order harmonic spectroscopy of the Cooper minimum in argon: Experimental and theoretical study. United States. doi:10.1103/PHYSREVA.83.053401.
Higuet, J., Ruf, H., Constant, E., Cormier, E., Descamps, D., Mevel, E., Petit, S., Pons, B., Mairesse, Y., Fabre, B., Thire, N., and Cireasa, R. Sun . "High-order harmonic spectroscopy of the Cooper minimum in argon: Experimental and theoretical study". United States. doi:10.1103/PHYSREVA.83.053401.
@article{osti_21546784,
title = {High-order harmonic spectroscopy of the Cooper minimum in argon: Experimental and theoretical study},
author = {Higuet, J. and Ruf, H. and Constant, E. and Cormier, E. and Descamps, D. and Mevel, E. and Petit, S. and Pons, B. and Mairesse, Y. and Fabre, B. and Thire, N. and Cireasa, R.},
abstractNote = {We study the Cooper minimum in high-order-harmonic generation from argon atoms by using long wavelength laser pulses. We find that the minimum in high-order-harmonic spectra is systematically shifted with respect to total photoionization cross section measurements. We use a semiclassical theoretical approach based on classical trajectory Monte Carlo and quantum electron scattering methods to model the experiment. Our study reveals that the shift between photoionization and high-order-harmonic emission is due to several effects: the directivity of the recombining electrons and emitted polarization, and the shape of the recolliding electron wave packet.},
doi = {10.1103/PHYSREVA.83.053401},
journal = {Physical Review. A},
issn = {1050-2947},
number = 5,
volume = 83,
place = {United States},
year = {2011},
month = {5}
}