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

Title: Controlling high-order harmonic generation and above-threshold ionization with an attosecond-pulse train

Abstract

We perform a detailed analysis of how high-order harmonic generation (HHG) and above-threshold ionization (ATI) can be controlled by a time-delayed attosecond-pulse train superposed to a strong, near-infrared laser field. In particular we show that the high-order harmonic and photoelectron intensities, the high-order harmonic plateau structure and cutoff energies, and the ATI angular distributions can be manipulated by changing this delay. This is a direct consequence of the fact that the attosecond pulse train can be employed as a tool for constraining the instant an electronic wave packet is ejected in the continuum. A change in such initial conditions strongly affects its subsequent motion in the laser field, and thus HHG and ATI. In our studies, we employ the strong-field approximation and explain the features observed in terms of interference effects between various electron quantum orbits. Our results are in agreement with recent experimental findings and theoretical studies employing purely numerical methods.

Authors:
;  [1];  [2]
  1. CEA-SPAM, Bat. 522, Centre d'Etudes de Saclay, F-91191 Gif-Sur-Yvette (France)
  2. ICREA, Institucio Catalana di Recerca i Estudis Avancats, and ICFO, Institut de Ciencies Fotoniques, E-08860 Castelldefels (Barcelona) (Spain)
Publication Date:
OSTI Identifier:
20974769
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 74; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.74.053416; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANGULAR DISTRIBUTION; APPROXIMATIONS; ELECTRONS; HARMONIC GENERATION; INTERFERENCE; IONIZATION; LASER RADIATION; OPTICS; ORBITS; PHOTOELECTRON SPECTROSCOPY; PHOTOIONIZATION; PHOTON-ATOM COLLISIONS; PULSES; TIME DELAY; WAVE PACKETS

Citation Formats

Figueira de Morisson Faria, C., Salieres, P, Villain, P, Lewenstein, M, and Institut fuer Theoretische Physik, Universitaet Hannover, Appelstrasse 2, D-30167 Hannover. Controlling high-order harmonic generation and above-threshold ionization with an attosecond-pulse train. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.74.053416.
Figueira de Morisson Faria, C., Salieres, P, Villain, P, Lewenstein, M, & Institut fuer Theoretische Physik, Universitaet Hannover, Appelstrasse 2, D-30167 Hannover. Controlling high-order harmonic generation and above-threshold ionization with an attosecond-pulse train. United States. doi:10.1103/PHYSREVA.74.053416.
Figueira de Morisson Faria, C., Salieres, P, Villain, P, Lewenstein, M, and Institut fuer Theoretische Physik, Universitaet Hannover, Appelstrasse 2, D-30167 Hannover. Wed . "Controlling high-order harmonic generation and above-threshold ionization with an attosecond-pulse train". United States. doi:10.1103/PHYSREVA.74.053416.
@article{osti_20974769,
title = {Controlling high-order harmonic generation and above-threshold ionization with an attosecond-pulse train},
author = {Figueira de Morisson Faria, C. and Salieres, P and Villain, P and Lewenstein, M and Institut fuer Theoretische Physik, Universitaet Hannover, Appelstrasse 2, D-30167 Hannover},
abstractNote = {We perform a detailed analysis of how high-order harmonic generation (HHG) and above-threshold ionization (ATI) can be controlled by a time-delayed attosecond-pulse train superposed to a strong, near-infrared laser field. In particular we show that the high-order harmonic and photoelectron intensities, the high-order harmonic plateau structure and cutoff energies, and the ATI angular distributions can be manipulated by changing this delay. This is a direct consequence of the fact that the attosecond pulse train can be employed as a tool for constraining the instant an electronic wave packet is ejected in the continuum. A change in such initial conditions strongly affects its subsequent motion in the laser field, and thus HHG and ATI. In our studies, we employ the strong-field approximation and explain the features observed in terms of interference effects between various electron quantum orbits. Our results are in agreement with recent experimental findings and theoretical studies employing purely numerical methods.},
doi = {10.1103/PHYSREVA.74.053416},
journal = {Physical Review. A},
issn = {1050-2947},
number = 5,
volume = 74,
place = {United States},
year = {2006},
month = {11}
}