Observation of shells in Coulomb explosions of rare-gas clusters

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.043201· OSTI ID:21544641

Erk, B; Hoffmann, K; Kandadai, N; Helal, A; Keto, J; Ditmire, T ^[1]

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1. Texas Center for High Intensity Laser Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712 (United States)

The explosions of noble gas clusters from argon and xenon irradiated by intense 35-fs infrared laser pulses have been studied. The kinetic energy spectra of ions produced in small clusters (<700 atoms) show a two-mode shell structure that is attributed to originating from a radial charge distribution. With a simple classical particle simulation of Coulomb explosions, the energy structure was reproduced using information on the arrangement of charge in the cluster. It was found that, during the explosion, the inner atoms of the clusters were less ionized than the outer atoms.

• OSTI ID: 21544641
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOMIC CLUSTERS
CHARGE DISTRIBUTION
CHARGED PARTICLES
COULOMB FIELD
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY
ENERGY SPECTRA
FLUIDS
GASES
INFRARED RADIATION
IONS
KINETIC ENERGY
LASER RADIATION
NONMETALS
PULSES
RADIATIONS
RARE GASES
SIMULATION
SPECTRA
XENON