Interference effects in Auger resonant Raman spectra of CO via selective vibrational excitations across the O 1s 86 2 80 resonance

T. Tanaka, H. Shindo, C. Makochekanwa, M. Kitajima, H. Tanaka, A. De Fanis, Y. Tamenori, K. Okada, R. Feifel, S. Sorensen, E. Kukk, K. Ueda

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Abstract

The Auger resonant Raman spectra of CO, arising from the transitions to the X and A final electronic states of C O+, have been recorded at photon energies corresponding to the vibrational excitations v 80 b2=3,5, and 8 in the O 1s 86 2 80 resonance. The spectra are simulated within the model that takes into account both the lifetime-vibrational interference (LVI) and interference with the nonresonant photoemission. The spectroscopic parameters, 89e, f 89e xe, db and re, of the O 1 s 88 1 2 80 core-excited state, necessary for the simulation, have been derived by fitting the Franck-Condon simulation to the total ion yield spectrum, assuming a Morse potential for the O 1 s 88 1 2 80 state. Not only the LVI but also the interference with the nonresonant photoemission turn out to be significant.

Original languageEnglish
Article number022507
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume72
Issue number2
DOIs
Publication statusPublished - 2005 Aug 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Tanaka, T., Shindo, H., Makochekanwa, C., Kitajima, M., Tanaka, H., De Fanis, A., Tamenori, Y., Okada, K., Feifel, R., Sorensen, S., Kukk, E., & Ueda, K. (2005). Interference effects in Auger resonant Raman spectra of CO via selective vibrational excitations across the O 1s 86 2 80 resonance. Physical Review A - Atomic, Molecular, and Optical Physics, 72(2), [022507]. https://doi.org/10.1103/PhysRevA.72.022507