O Meighan et al 1999 J. Phys. B: At. Mol. Opt. Phys. 32 L285 doi:10.1088/0953-4075/32/13/101
Observation of a 6p-6d giant dipole resonance in the VUV photoabsorption spectrum of a laser-produced thorium plasma
O Meighan
, L Dardis, E T Kennedy, T J Morgan
, J-P Mosnier, P van Kampen and J T Costello
LETTER TO THE EDITOR
We have measured the VUV photoabsorption spectrum of a thorium plasma produced by the laser irradiation of a metal target. At times in excess of 600 ns after plasma initiation, the plume is dominated by neutral atoms and a 6p-6d giant dipole resonance is observed in the spectrum. These first VUV atomic data in the 17-32 eV energy range are compared with existing solid-state data and theoretical calculations.
- PACS
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52.50.Jm Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)
34.50.-s Scattering of atoms and molecules
32.30.Jc Visible and ultraviolet spectra
32.80.Fb Photoionization of atoms and ions
52.25.Os Emission, absorption, and scattering of electromagnetic radiation
- Subjects
- Dates
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Issue 13 (14 July 1999)
Received 7 April 1999
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Observation of a 6p-6d giant dipole resonance in the VUV photoabsorption spectrum of a laser-produced thorium plasma
O Meighan et al 1999 J. Phys. B: At. Mol. Opt. Phys. 32 L285
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