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- Simon, M., et al.
(author)
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Elastic peak of K shell excited HCl molecule : Comparison HCl-DCl - Experiment and theory
- 2007
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In: Journal of Electron Spectroscopy and Related Phenomena. - : Elsevier BV. - 0368-2048 .- 1873-2526. ; 155:1-3, s. 91-94
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Journal article (peer-reviewed)abstract
- Fermosecond dynamics has been recently observed by resonant X-ray Raman scattering (RXRS) after excitation along the dissociative Cl 1s -> 6 sigma* resonance of gas phase HCl. In this paper, we show a method to take into account and correct for self-absorption of the elastic peak, in order to allow for quantitative comparison with theory. We have performed measurements on the DCl molecule exhibiting ultrafast nuclear motion. A comparison between HCl and DCl is presented.
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- Simon, M., et al.
(author)
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Femtosecond nuclear motion of HCl probed by resonant x-ray Raman scattering in the Cl 1s region
- 2006
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In: Physical Review A. Atomic, Molecular, and Optical Physics. - 1050-2947 .- 1094-1622. ; 73:2, s. 020706(R)-
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Journal article (peer-reviewed)abstract
- Femtosecond dynamics are observed by resonant x-ray Raman scattering (RXS) after excitation along the dissociative Cl 1s -> 6 sigma(*) resonance of gas-phase HCl. The short core-hole lifetime results in a complete breakdown of the common nondispersive behavior of soft-x-ray transitions between parallel potentials. We evidence a general phenomenon of RXS in the hard-x-ray region: a complete quenching of vibrational broadening. This opens up a unique opportunity for superhigh resolution x-ray spectroscopy beyond vibrational and lifetime limitations.
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