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Attosecond Electron Spectroscopy Using a Novel Interferometric Pump-Probe Technique

Mauritsson, Johan LU ; Remetter, Thomas LU ; Swoboda, Marko LU ; Klünder, Kathrin LU ; L'Huillier, Anne LU ; Schafer, K. J.; Ghafur, O.; Kelkensberg, F.; Siu, W. and Johnsson, Per LU , et al. (2010) In Physical Review Letters 105(5).
Abstract
We present an interferometric pump-probe technique for the characterization of attosecond electron wave packets (WPs) that uses a free WP as a reference to measure a bound WP. We demonstrate our method by exciting helium atoms using an attosecond pulse (AP) with a bandwidth centered near the ionization threshold, thus creating both a bound and a free WP simultaneously. After a variable delay, the bound WP is ionized by a few-cycle infrared laser precisely synchronized to the original AP. By measuring the delay-dependent photoelectron spectrum we obtain an interferogram that contains both quantum beats as well as multipath interference. Analysis of the interferogram allows us to determine the bound WP components with a spectral resolution... (More)
We present an interferometric pump-probe technique for the characterization of attosecond electron wave packets (WPs) that uses a free WP as a reference to measure a bound WP. We demonstrate our method by exciting helium atoms using an attosecond pulse (AP) with a bandwidth centered near the ionization threshold, thus creating both a bound and a free WP simultaneously. After a variable delay, the bound WP is ionized by a few-cycle infrared laser precisely synchronized to the original AP. By measuring the delay-dependent photoelectron spectrum we obtain an interferogram that contains both quantum beats as well as multipath interference. Analysis of the interferogram allows us to determine the bound WP components with a spectral resolution much better than the inverse of the AP duration. (Less)
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Physical Review Letters
volume
105
issue
5
publisher
American Physical Society
external identifiers
  • wos:000280370100003
  • scopus:77955110047
ISSN
1079-7114
DOI
10.1103/PhysRevLett.105.053001
language
English
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yes
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6ea39e11-ff07-41b3-ab95-35f027722db7 (old id 1653708)
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2010-08-26 09:48:23
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2018-07-08 03:04:15
@article{6ea39e11-ff07-41b3-ab95-35f027722db7,
  abstract     = {We present an interferometric pump-probe technique for the characterization of attosecond electron wave packets (WPs) that uses a free WP as a reference to measure a bound WP. We demonstrate our method by exciting helium atoms using an attosecond pulse (AP) with a bandwidth centered near the ionization threshold, thus creating both a bound and a free WP simultaneously. After a variable delay, the bound WP is ionized by a few-cycle infrared laser precisely synchronized to the original AP. By measuring the delay-dependent photoelectron spectrum we obtain an interferogram that contains both quantum beats as well as multipath interference. Analysis of the interferogram allows us to determine the bound WP components with a spectral resolution much better than the inverse of the AP duration.},
  articleno    = {053001},
  author       = {Mauritsson, Johan and Remetter, Thomas and Swoboda, Marko and Klünder, Kathrin and L'Huillier, Anne and Schafer, K. J. and Ghafur, O. and Kelkensberg, F. and Siu, W. and Johnsson, Per and Vrakking, M. J. J. and Znakovskaya, I. and Uphues, T. and Zherebtsov, S. and Kling, M. F. and Lepine, F. and Benedetti, E. and Ferrari, F. and Sansone, G. and Nisoli, M.},
  issn         = {1079-7114},
  language     = {eng},
  number       = {5},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Attosecond Electron Spectroscopy Using a Novel Interferometric Pump-Probe Technique},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.105.053001},
  volume       = {105},
  year         = {2010},
}