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Direct Visualization of Laser-Driven Electron Multiple Scattering and Tunneling Distance in Strong-Field Ionization

Hickstein, Daniel D.; Ranitovic, Predrag; Witte, Stefan; Tong, Xiao-Min; Huismans, Ymkje; Arpin, Paul; Zhou, Xibin; Keister, K. Ellen; Hogle, Craig W. and Zhang, Bosheng, et al. (2012) In Physical Review Letters 109(7).
Abstract
Using a simple model of strong-field ionization of atoms that generalizes the well-known 3-step model from 1D to 3D, we show that the experimental photoelectron angular distributions resulting from laser ionization of xenon and argon display prominent structures that correspond to electrons that pass by their parent ion more than once before strongly scattering. The shape of these structures can be associated with the specific number of times the electron is driven past its parent ion in the laser field before scattering. Furthermore, a careful analysis of the cutoff energy of the structures allows us to experimentally measure the distance between the electron and ion at the moment of tunnel ionization. This work provides new physical... (More)
Using a simple model of strong-field ionization of atoms that generalizes the well-known 3-step model from 1D to 3D, we show that the experimental photoelectron angular distributions resulting from laser ionization of xenon and argon display prominent structures that correspond to electrons that pass by their parent ion more than once before strongly scattering. The shape of these structures can be associated with the specific number of times the electron is driven past its parent ion in the laser field before scattering. Furthermore, a careful analysis of the cutoff energy of the structures allows us to experimentally measure the distance between the electron and ion at the moment of tunnel ionization. This work provides new physical insight into how atoms ionize in strong laser fields and has implications for further efforts to extract atomic and molecular dynamics from strong-field physics. (Less)
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type
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publication status
published
subject
in
Physical Review Letters
volume
109
issue
7
publisher
American Physical Society
external identifiers
  • wos:000307709400016
  • scopus:84865274429
ISSN
1079-7114
DOI
10.1103/PhysRevLett.109.073004
language
English
LU publication?
yes
id
64b4164a-bd72-4288-a424-e13554c539fb (old id 3151827)
date added to LUP
2012-10-29 11:49:51
date last changed
2017-09-17 03:56:58
@article{64b4164a-bd72-4288-a424-e13554c539fb,
  abstract     = {Using a simple model of strong-field ionization of atoms that generalizes the well-known 3-step model from 1D to 3D, we show that the experimental photoelectron angular distributions resulting from laser ionization of xenon and argon display prominent structures that correspond to electrons that pass by their parent ion more than once before strongly scattering. The shape of these structures can be associated with the specific number of times the electron is driven past its parent ion in the laser field before scattering. Furthermore, a careful analysis of the cutoff energy of the structures allows us to experimentally measure the distance between the electron and ion at the moment of tunnel ionization. This work provides new physical insight into how atoms ionize in strong laser fields and has implications for further efforts to extract atomic and molecular dynamics from strong-field physics.},
  articleno    = {073004},
  author       = {Hickstein, Daniel D. and Ranitovic, Predrag and Witte, Stefan and Tong, Xiao-Min and Huismans, Ymkje and Arpin, Paul and Zhou, Xibin and Keister, K. Ellen and Hogle, Craig W. and Zhang, Bosheng and Ding, Chengyuan and Johnsson, Per and Toshima, N. and Vrakking, Marc J. J. and Murnane, Margaret M. and Kapteyn, Henry C.},
  issn         = {1079-7114},
  language     = {eng},
  number       = {7},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Direct Visualization of Laser-Driven Electron Multiple Scattering and Tunneling Distance in Strong-Field Ionization},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.109.073004},
  volume       = {109},
  year         = {2012},
}