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High pressure studies of luminescent phenomena

Pressure has proved to be a powerful tool for studying luminescent processes. In general, pressure effects can be explained by assuming that pressure couples most strongly to the totally symmetric mode of the system. In this paper we describe two studies where remarkably strong coupling to a non-tot...

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Bibliographic Details
Published in:Journal of the less-common metals 1978-01, Vol.62, p.381-396
Main Authors: Drickamer, H.G., Klick, D.I.
Format: Article
Language:English
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Summary:Pressure has proved to be a powerful tool for studying luminescent processes. In general, pressure effects can be explained by assuming that pressure couples most strongly to the totally symmetric mode of the system. In this paper we describe two studies where remarkably strong coupling to a non-totally symmetric mode is observed. The first of these involves the relative occupation of Jahn-Teller split states in indium-doped alkali halides as a function of temperature and pressure and relates the steady state intensities observed to the lifetimes. The second study concerns phononassisted emission from alkali halides doped with Cu + or Ag +. The steady state configuration coordinate parameters are used to predict the change of lifetime with pressure.
ISSN:0022-5088
DOI:10.1016/0022-5088(78)90052-8