Phys. Rev. Lett. 89, 143401 (2002) [4 pages]Ionization of Clusters in Strong X-Ray Laser PulsesReceived 19 June 2002; published 11 September 2002 The effect of intense x-ray laser interaction on argon clusters is studied theoretically with a mixed quantum/classical approach. In comparison to a single atom we find that ionization of the cluster is suppressed, which is in striking contrast to the observed behavior of rare-gas clusters in intense optical laser pulses. We have identified two effects responsible for this phenomenon: A high space charge of the cluster in combination with a small quiver amplitude and delocalization of electrons in the cluster. We elucidate their impact for different field strengths and cluster sizes. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.143401
DOI:
10.1103/PhysRevLett.89.143401
PACS:
36.40.Wa, 32.80.Hd, 33.90.+h, 41.60.Cr
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