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Cluster structure effects on the interaction of an ultrashort intense laser field with large clusters

Published online by Cambridge University Press:  01 March 2004

B. SHOKRI ,
A.R. NIKNAM  and
V. KRAINOV
B. SHOKRI
Affiliation:
Physics Department and Laser Research Institute of Shahid Beheshti University, Evin, Tehran, Iran Institute for Studies in Theoretical Physics and Mathematics, Tehran, Iran
A.R. NIKNAM
Affiliation:
Physics Department and Laser Research Institute of Shahid Beheshti University, Evin, Tehran, Iran
V. KRAINOV
Affiliation:
Moscow Physics and Technology, Dolgoprudny, Moscow Region, Russia
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Abstract

The structure of large clusters such as neutral clusters, metallic clusters, and clusters ion is investigated. Furthermore, the electron distribution of large clusters when they are irradiated by an intense ultrashort laser pulse is treated. The cluster excitation results from the interaction of the electron subsystem with the laser field. Analyzing the quantum metallic cluster proves that its properties differ essentially from the properties of a classical small metallic sphere. The eigen frequency of the surface oscillation of a cluster is obtained and it is shown that it is lower than Mie frequency because of Thomas–Fermi screening.

Keywords

Cluster structuresInert gasOscillationQuantum metallic clusterUltrashort intense laser
Type
International Conference on the Frontiers of Plasma Physics and Technology
Information
Laser and Particle Beams , Volume 22 , Issue 1 , March 2004 , pp. 13 - 18
Copyright
2004 Cambridge University Press

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