Multiple Excitation and Lifetime of the Sodium Cluster Plasmon Resonance

Ralph Schlipper, Robert Kusche, Bernd von Issendorff, and Hellmut Haberland
Phys. Rev. Lett. 80, 1194 – Published 9 February 1998
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Abstract

The large collective resonance of the spherical cluster Na93+ has been studied using a femtosecond laser, which directly excites the resonance. Photofragment size and charge distributions have been measured. A large intensity of doubly and triply charged fragments has been observed, which is absent when applying nanosecond laser pulses of the same wavelength and pulse energy. The efficient ionization processes can be understood as autoionization of the multiply excited collective resonance. A simple rate model gives an estimate of about 10 fs for the lifetime of the resonance.

  • Received 19 September 1997

DOI:https://doi.org/10.1103/PhysRevLett.80.1194

©1998 American Physical Society

Authors & Affiliations

Ralph Schlipper, Robert Kusche, Bernd von Issendorff, and Hellmut Haberland

  • Fakultät für Physik, Universität Freiburg, H. Herderstrasse 3, D-79104 Freiburg, Germany

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Vol. 80, Iss. 6 — 9 February 1998

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