Collapse of Vibrational Structure in the Auger Resonant Raman Spectrum of CO by Frequency Detuning

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.1451· OSTI ID:538614

Sundin, S; Osborne, S J; Kikas, A; Bjoerneholm, O; Ausmees, A; Svensson, S ^[1]; Kh Gelmukhanov, F; Agren, H ^[2]

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1. Department of Physics, Uppsala University, Box 530, S-751 21 Uppsala (Sweden)
2. IFM, Institute of Physics and Measurement Technology, Linkoeping University, S-581 83 Linkoeping (Sweden)

Observations made in the C1s{r_arrow}{pi}{sup *} Auger resonant Raman spectra of carbon monoxide demonstrate that the vibrational structure in such spectra is strongly frequency dependent. In the limit of narrow bandpass photon excitation, the vibrational excitations of the 5{sigma} participator transition collapse to one single line within a sub-eV detuning range. The effect is explained in terms of a generalized duration time for the resonance process, in which the lifetime of the core excited state and the inverse of the detuning frequency play equal roles. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 538614
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AUGER EFFECT
CARBON MONOXIDE
EXCITATION
FREQUENCY DEPENDENCE
LIFETIME
PHOTONS
RAMAN SPECTRA
RESONANCE
VIBRATIONAL STATES