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Resonance-enhanced two-photon ionization of He and Xe using a mode-locked Ar+ laser synchronized to VUV synchrotron radiation pulses

Meyer, M.; Nahon, L.; Lacoursière, J.; Gisselbrecht, M. LU ; Morin, P. and Larzillière, M. (1996) In Journal of Electron Spectroscopy and Related Phenomena 79. p.343-346
Abstract

The light pulses of a mode-locked Ar+ laser have been synchronized to the synchrotron radiation pulses of the SuperACO storage ring in Orsay. In order to test the feasibility and to demonstrate the capability for the investigation of free atoms we have studied the two-photon ionization of atomic Helium and Xenon via the He* 1s3p and Xe* 5p55d resonant state, respectively. The experimental results show clearly an ionization signal which strongly depends on the temporal delay between the two light pulses. The spectra can be interpreted as the convolution of an exponential function representing the lifetime of the intermediate resonant state and a Gaussian function representing the cross correlation function of the... (More)

The light pulses of a mode-locked Ar+ laser have been synchronized to the synchrotron radiation pulses of the SuperACO storage ring in Orsay. In order to test the feasibility and to demonstrate the capability for the investigation of free atoms we have studied the two-photon ionization of atomic Helium and Xenon via the He* 1s3p and Xe* 5p55d resonant state, respectively. The experimental results show clearly an ionization signal which strongly depends on the temporal delay between the two light pulses. The spectra can be interpreted as the convolution of an exponential function representing the lifetime of the intermediate resonant state and a Gaussian function representing the cross correlation function of the synchrotron and laser radiation. The overall time resolution of the present set-up has been estimated to about 1ns.

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author
publishing date
type
Contribution to journal
publication status
published
in
Journal of Electron Spectroscopy and Related Phenomena
volume
79
pages
4 pages
publisher
Elsevier
external identifiers
  • scopus:3843076370
ISSN
0368-2048
DOI
10.1016/0368-2048(96)02869-1
language
English
LU publication?
no
id
92ff8e51-f6f3-4f97-b8f1-46d02df1c80e
date added to LUP
2017-11-23 14:13:18
date last changed
2017-11-28 14:45:07
@article{92ff8e51-f6f3-4f97-b8f1-46d02df1c80e,
  abstract     = {<p>The light pulses of a mode-locked Ar<sup>+</sup> laser have been synchronized to the synchrotron radiation pulses of the SuperACO storage ring in Orsay. In order to test the feasibility and to demonstrate the capability for the investigation of free atoms we have studied the two-photon ionization of atomic Helium and Xenon via the He* 1s3p and Xe* 5p<sup>5</sup>5d resonant state, respectively. The experimental results show clearly an ionization signal which strongly depends on the temporal delay between the two light pulses. The spectra can be interpreted as the convolution of an exponential function representing the lifetime of the intermediate resonant state and a Gaussian function representing the cross correlation function of the synchrotron and laser radiation. The overall time resolution of the present set-up has been estimated to about 1ns.</p>},
  author       = {Meyer, M. and Nahon, L. and Lacoursière, J. and Gisselbrecht, M. and Morin, P. and Larzillière, M.},
  issn         = {0368-2048},
  language     = {eng},
  pages        = {343--346},
  publisher    = {Elsevier},
  series       = {Journal of Electron Spectroscopy and Related Phenomena},
  title        = {Resonance-enhanced two-photon ionization of He and Xe using a mode-locked Ar<sup>+</sup> laser synchronized to VUV synchrotron radiation pulses},
  url          = {http://dx.doi.org/10.1016/0368-2048(96)02869-1},
  volume       = {79},
  year         = {1996},
}