High-spectral-resolution attosecond absorption spectroscopy of autoionization in xenon

Birgitta Bernhardt, Annelise R. Beck, Xuan Li, Erika R. Warrick, M. Justine Bell, Daniel J. Haxton, C. William McCurdy, Daniel M. Neumark, Stephen R. Leone

Research output: Contribution to journalArticlepeer-review


The decay of highly excited states of xenon after absorption of extreme ultraviolet light is directly tracked via attosecond transient absorption spectroscopy using a time-delayed near-infrared perturbing pulse. The lifetimes of the autoionizing 5s5p66p and 5s5p67p channels are determined to be (21.9 ± 1.3) fs and (48.4 ± 5.0) fs, respectively. The observed values support lifetime estimates obtained by traditional linewidth measurements. The experiment additionally obtains the temporal evolution of the decay as a function of energy detuning from the resonance center, and a quantum mechanical formalism is introduced that correctly accounts for the observed energy dependence.
Original languageEnglish
Pages (from-to)023408-1 - 023408-5
Number of pages5
JournalPhysical Review B
Publication statusPublished - 1 Feb 2014
Externally publishedYes

Fields of Expertise

  • Advanced Materials Science

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