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Title: Emergence from nonrelativistic strong-field rescattering to ultrastrong-field laser-atom physics: A semiclassical analysis

Abstract

We discuss a rescattering deflection parameter to gauge the progression from strong- to ultrastrong-field rescattering dynamics. Our analytical and numerical treatments of rescattering quantify the change from nonrelativistic, dipole approximation strong-field dynamics to an ultrastrong-field interaction where v/c{ne}0 and B{sub laser}{ne}0. At the threshold between these two regimes the Lorentz deflection reduces the returning electron flux at the core and suppresses rescattering related phenomena. Both radiation and nonsequential ionization from rescattering are studied. We show the ultrastrong-field regime can occur at intensities as low as 10{sup 14} W/cm{sup 2} for mid-IR (2 {mu}m to 5 {mu}m) wavelengths or as high as 10{sup 18} W/cm{sup 2} for UV radiation.

Authors:
; ; ; ;  [1]
  1. Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States)
Publication Date:
OSTI Identifier:
20857716
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 74; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.74.033403; (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; ATOMS; DIPOLES; ELECTRONS; IONIZATION; LASER RADIATION; LIGHT SCATTERING; OPTICS; RESCATTERING; SEMICLASSICAL APPROXIMATION; ULTRAVIOLET RADIATION; WAVELENGTHS

Citation Formats

Palaniyappan, S, Ghebregziabher, I, DiChiara, A, MacDonald, J, and Walker, B C. Emergence from nonrelativistic strong-field rescattering to ultrastrong-field laser-atom physics: A semiclassical analysis. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.74.033403.
Palaniyappan, S, Ghebregziabher, I, DiChiara, A, MacDonald, J, & Walker, B C. Emergence from nonrelativistic strong-field rescattering to ultrastrong-field laser-atom physics: A semiclassical analysis. United States. https://doi.org/10.1103/PHYSREVA.74.033403
Palaniyappan, S, Ghebregziabher, I, DiChiara, A, MacDonald, J, and Walker, B C. Fri . "Emergence from nonrelativistic strong-field rescattering to ultrastrong-field laser-atom physics: A semiclassical analysis". United States. https://doi.org/10.1103/PHYSREVA.74.033403.
@article{osti_20857716,
title = {Emergence from nonrelativistic strong-field rescattering to ultrastrong-field laser-atom physics: A semiclassical analysis},
author = {Palaniyappan, S and Ghebregziabher, I and DiChiara, A and MacDonald, J and Walker, B C},
abstractNote = {We discuss a rescattering deflection parameter to gauge the progression from strong- to ultrastrong-field rescattering dynamics. Our analytical and numerical treatments of rescattering quantify the change from nonrelativistic, dipole approximation strong-field dynamics to an ultrastrong-field interaction where v/c{ne}0 and B{sub laser}{ne}0. At the threshold between these two regimes the Lorentz deflection reduces the returning electron flux at the core and suppresses rescattering related phenomena. Both radiation and nonsequential ionization from rescattering are studied. We show the ultrastrong-field regime can occur at intensities as low as 10{sup 14} W/cm{sup 2} for mid-IR (2 {mu}m to 5 {mu}m) wavelengths or as high as 10{sup 18} W/cm{sup 2} for UV radiation.},
doi = {10.1103/PHYSREVA.74.033403},
url = {https://www.osti.gov/biblio/20857716}, journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 74,
place = {United States},
year = {2006},
month = {9}
}