Laser ablation and spectroscopy of copper in liquid and solid {sup 4}He

Journal Article · Tue Nov 15 00:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.052519· OSTI ID:22093520

Moroshkin, P.; Lebedev, V.; Weis, A. ^[1]

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1. Departement de Physique, Universite de Fribourg, Chemin du Musee 3, CH-1700 Fribourg (Switzerland)

We present an experimental study of the laser-induced fluorescence spectra of Cu atoms in bulk liquid and solid helium matrices as well as in the dense plasma created by the laser ablation of copper in liquid helium. We observe transitions of the valence electron and of inner-shell electrons. The former produce structureless line shapes, a large broadening, and a blueshift. The latter practically are not shifted with respect to the free atom and possess a substructure consisting of a zero-phonon line and phonon wings. We suggest a qualitative interpretation of the observed spectra based on the atomic bubble model that takes the lifting of the |M{sub J}| degeneracy due to the bubble deformation and matrix-phonon interactions into account.

• OSTI ID: 22093520
• Journal Information: Physical Review. A, Vol. 84, Issue 5; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
74 ATOMIC AND MOLECULAR PHYSICS
ABLATION
ATOMS
COPPER
DEFORMATION
ELECTRON-PHONON COUPLING
ELECTRONS
EMISSION SPECTRA
FLUORESCENCE SPECTROSCOPY
HELIUM
HELIUM 4
LASER-PRODUCED PLASMA
LINE BROADENING
LIQUIDS
MATRIX MATERIALS
PHONONS
SOLIDS
VALENCE