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Title: Dynamic of rescattering-electron wave packets in strong and short-wavelength laser fields: Roles of Coulomb potential and excited states

Abstract

We investigate the high-order harmonic generation of atoms and molecules exposed in strong and short-wavelength (shorter than 800 nm) laser fields. Our simulations show that the electronic rescattering trajectory depends strongly on the property of the Coulomb potential. Using numerical schemes, we identify the important role of excited states in the emission times of harmonics from molecules. We propose a model, which considers the initial position when electrons tunnel out from the potential, to explain the electronic response in intense and relatively high-frequency laser fields.

Authors:
 [1]
  1. Beijing Computational Science Research Center, Beijing (China)
Publication Date:
OSTI Identifier:
22095380
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 4; Other Information: (c) 2011 American Institute of Physics; 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; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; COMPUTERIZED SIMULATION; COULOMB FIELD; ELECTRONS; EMISSION; EXCITED STATES; HARMONIC GENERATION; LASER RADIATION; MOLECULES; POTENTIALS; RESCATTERING; WAVE PACKETS; WAVELENGTHS

Citation Formats

Yanjun, Chen. Dynamic of rescattering-electron wave packets in strong and short-wavelength laser fields: Roles of Coulomb potential and excited states. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.043423.
Yanjun, Chen. Dynamic of rescattering-electron wave packets in strong and short-wavelength laser fields: Roles of Coulomb potential and excited states. United States. https://doi.org/10.1103/PHYSREVA.84.043423
Yanjun, Chen. Sat . "Dynamic of rescattering-electron wave packets in strong and short-wavelength laser fields: Roles of Coulomb potential and excited states". United States. https://doi.org/10.1103/PHYSREVA.84.043423.
@article{osti_22095380,
title = {Dynamic of rescattering-electron wave packets in strong and short-wavelength laser fields: Roles of Coulomb potential and excited states},
author = {Yanjun, Chen},
abstractNote = {We investigate the high-order harmonic generation of atoms and molecules exposed in strong and short-wavelength (shorter than 800 nm) laser fields. Our simulations show that the electronic rescattering trajectory depends strongly on the property of the Coulomb potential. Using numerical schemes, we identify the important role of excited states in the emission times of harmonics from molecules. We propose a model, which considers the initial position when electrons tunnel out from the potential, to explain the electronic response in intense and relatively high-frequency laser fields.},
doi = {10.1103/PHYSREVA.84.043423},
url = {https://www.osti.gov/biblio/22095380}, journal = {Physical Review. A},
issn = {1050-2947},
number = 4,
volume = 84,
place = {United States},
year = {2011},
month = {10}
}