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Optics Communications

On the confluence of coherence in the photoelectron spectrum near autoionizing level

A I Andrjushin, Mikhail Vladimirovich Fedorov, Alexey E. Kazakov

Published Feb 1, 1984• 11 citations
Publisher
DOI
10.1016/0030-4018(84)90375-4

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Photoemission spectra from autoionizing states in the presence of a strong laser field are calculated. Such spectra have very sharp features near "confluence" (at the Fano minimum) and are very similar, in structure, to photoelectron spectra. The total intensity, as a function of laser intensity or detuning, has a peak near confluence, which can be used, among other things, for the accurate determination of Fano asymmetry parameter qqq.