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Direct observation of Young's double-slit interferences in vibrationally resolved photoionization of diatomic molecules.

Canton, Sophie LU ; Plésiat, Etienne; Bozek, John D; Rude, Bruce S; Decleva, Piero and Martín, Fernando (2011) In Proceedings of the National Academy of Sciences 108(18). p.7302-7306
Abstract
Vibrationally resolved valence-shell photoionization spectra of H(2), N(2) and CO have been measured in the photon energy range 20-300 eV using third-generation synchrotron radiation. Young's double-slit interferences lead to oscillations in the corresponding vibrational ratios, showing that the molecules behave as two-center electron-wave emitters and that the associated interferences leave their trace in the angle-integrated photoionization cross section. In contrast to previous work, the oscillations are directly observable in the experiment, thereby removing any possible ambiguity related to the introduction of external parameters or fitting functions. A straightforward extension of an original idea proposed by Cohen and Fano [Cohen... (More)
Vibrationally resolved valence-shell photoionization spectra of H(2), N(2) and CO have been measured in the photon energy range 20-300 eV using third-generation synchrotron radiation. Young's double-slit interferences lead to oscillations in the corresponding vibrational ratios, showing that the molecules behave as two-center electron-wave emitters and that the associated interferences leave their trace in the angle-integrated photoionization cross section. In contrast to previous work, the oscillations are directly observable in the experiment, thereby removing any possible ambiguity related to the introduction of external parameters or fitting functions. A straightforward extension of an original idea proposed by Cohen and Fano [Cohen HD, Fano U (1966) Phys Rev 150:30] confirms this interpretation and shows that it is also valid for diatomic heteronuclear molecules. Results of accurate theoretical calculations are in excellent agreement with the experimental findings. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Proceedings of the National Academy of Sciences
volume
108
issue
18
pages
7302 - 7306
publisher
National Acad Sciences
external identifiers
  • wos:000290203100012
  • pmid:21498686
  • scopus:79956301631
ISSN
1091-6490
DOI
10.1073/pnas.1018534108
language
English
LU publication?
yes
id
f9fef34d-46c9-4082-a5c3-2c147da6b8d5 (old id 1937022)
date added to LUP
2011-05-12 12:23:51
date last changed
2017-10-22 03:11:10
@article{f9fef34d-46c9-4082-a5c3-2c147da6b8d5,
  abstract     = {Vibrationally resolved valence-shell photoionization spectra of H(2), N(2) and CO have been measured in the photon energy range 20-300 eV using third-generation synchrotron radiation. Young's double-slit interferences lead to oscillations in the corresponding vibrational ratios, showing that the molecules behave as two-center electron-wave emitters and that the associated interferences leave their trace in the angle-integrated photoionization cross section. In contrast to previous work, the oscillations are directly observable in the experiment, thereby removing any possible ambiguity related to the introduction of external parameters or fitting functions. A straightforward extension of an original idea proposed by Cohen and Fano [Cohen HD, Fano U (1966) Phys Rev 150:30] confirms this interpretation and shows that it is also valid for diatomic heteronuclear molecules. Results of accurate theoretical calculations are in excellent agreement with the experimental findings.},
  author       = {Canton, Sophie and Plésiat, Etienne and Bozek, John D and Rude, Bruce S and Decleva, Piero and Martín, Fernando},
  issn         = {1091-6490},
  language     = {eng},
  number       = {18},
  pages        = {7302--7306},
  publisher    = {National Acad Sciences},
  series       = {Proceedings of the National Academy of Sciences},
  title        = {Direct observation of Young's double-slit interferences in vibrationally resolved photoionization of diatomic molecules.},
  url          = {http://dx.doi.org/10.1073/pnas.1018534108},
  volume       = {108},
  year         = {2011},
}