From above threshold ionization to statistical electron emission: The laser pulse-duration dependence of C60 photoelectron spectra

E. E.B. Campbell, K. Hansen, K. Hoffmann, G. Korn, M. Tchaplyguine, M. Wittmann, I. V. Hertel

Research output: Contribution to journalArticlepeer-review

153 Scopus citations

Abstract

The photoelectron spectra of C60 ionized using a 790 nm laser with pulse durations varying from 25 fs to 5 ps have been determined. For 25 fs pulses, in the absence of fragmentation, the ionization mechanism is direct multiphoton ionization with clear observation of above threshold ionization. As the pulse duration is increased, this becomes dominated by a statistical ionization due to equilibration among the electronic degrees of freedom. For pulse durations on the order of a ps coupling to the vibrational degrees of freedom occurs and the well-known phenomenon of delayed (μs) ionization is observed.

Original languageEnglish
Pages (from-to)2128-2131
Number of pages4
JournalPhysical Review Letters
Volume84
Issue number10
DOIs
StatePublished - 2000

Fingerprint

Dive into the research topics of 'From above threshold ionization to statistical electron emission: The laser pulse-duration dependence of C60 photoelectron spectra'. Together they form a unique fingerprint.

Cite this