Rare-gas-cluster explosions under irradiation by intense short XUV pulses

Journal Article · Fri Apr 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.043203· OSTI ID:21544643

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

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

High-intensity, extreme-ultraviolet (XUV) femtosecond interactions with large rare-gas clusters of xenon and argon have been studied at a wavelength of 38 nm. Pulses of XUV radiation with nJ energy are produced by high-order harmonic conversion from a 35-fs, near-infrared, terawatt laser. Mass resolved ion spectra show charge states up to Xe{sup 8+} and Ar{sup 4+}. Kinetic-energy measurements of ions and electrons indicate that a nanoplasma is formed and a hydrodynamic cluster explosion ensues after heating by the short wavelength pulse. It appears that the observed charge states and electron temperatures are consistent with sequential, single-photon ionization and collisional ionization of ions that have had their ionization potential depressed by plasma continuum lowering in the cluster nanoplasma.

• OSTI ID: 21544643
• 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

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ARGON IONS
ATOMIC CLUSTERS
CHARGE STATES
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
EXPLOSIONS
EXTREME ULTRAVIOLET RADIATION
FERMIONS
FLUIDS
GASES
INTERACTIONS
IONIZATION
IONIZATION POTENTIAL
IONS
IRRADIATION
KINETIC ENERGY
LASERS
LEPTONS
NONMETALS
PHOTOIONIZATION
PLASMA
PULSES
RADIATIONS
RARE GASES
SPECTRA
ULTRAVIOLET RADIATION
WAVELENGTHS
XENON
XENON IONS