Optical absorption and electron-energy-loss spectra of helium microbubbles in aluminum

J. C. Rife, S. E. Donnelly, A. A. Lucas, J. M. Gilles, J. J. Ritsko

Research output: Contribution to journalArticle

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Abstract

Aluminum thin films containing helium microbubbles produced by He+-ion implantation have been investigated by ultraviolet absorption and electron-energy-loss spectroscopies in the range 1-30 eV. The shape and position of the 1S01-nP11 helium line series and several Al plasmon bands are discussed in terms of the physical state of helium in the bubbles. Results imply helium densities 3 to 6 times that of liquid He at 2°K and 1 bar pressure.

LanguageEnglish
Pages1220-1223
Number of pages4
JournalPhysical Review Letters
Volume46
Issue number18
DOIs
Publication statusPublished - 4 May 1981
Externally publishedYes

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optical absorption
energy dissipation
helium
electron energy
aluminum
ultraviolet absorption
ion implantation
bubbles
liquids
thin films
spectroscopy

Cite this

Rife, J. C. ; Donnelly, S. E. ; Lucas, A. A. ; Gilles, J. M. ; Ritsko, J. J. / Optical absorption and electron-energy-loss spectra of helium microbubbles in aluminum. In: Physical Review Letters. 1981 ; Vol. 46, No. 18. pp. 1220-1223.
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Optical absorption and electron-energy-loss spectra of helium microbubbles in aluminum. / Rife, J. C.; Donnelly, S. E.; Lucas, A. A.; Gilles, J. M.; Ritsko, J. J.

In: Physical Review Letters, Vol. 46, No. 18, 04.05.1981, p. 1220-1223.

Research output: Contribution to journalArticle

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AU - Rife, J. C.

AU - Donnelly, S. E.

AU - Lucas, A. A.

AU - Gilles, J. M.

AU - Ritsko, J. J.

PY - 1981/5/4

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AB - Aluminum thin films containing helium microbubbles produced by He+-ion implantation have been investigated by ultraviolet absorption and electron-energy-loss spectroscopies in the range 1-30 eV. The shape and position of the 1S01-nP11 helium line series and several Al plasmon bands are discussed in terms of the physical state of helium in the bubbles. Results imply helium densities 3 to 6 times that of liquid He at 2°K and 1 bar pressure.

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