Photoluminescence from colour centres generated in lithium fluoride thin films and crystals by extreme-ultraviolet irradiation

E. Nichelatti, S. Almaviva, F. Bonfigli, I. Franzini, R.M. Montereali, M.A. Vincenti

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Abstract

We report about the light-emitting properties of colour centres in lithium fluoride thin films and crystals treated with low-penetrating extreme-ultraviolet radiation and soft X-rays. Experimental fluorescence-imaging results show that, under the same irradiation conditions, stronger photoluminescence, up to a factor eight, is released by colour centres in a film thermally grown on silicon substrate than in a crystal. By using a classical-electromagnetism model, we take into account the role of the silicon substrate in the enhancement of spontaneous emission over a broad spectral range to analyze such behaviour. © 2010 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)3035 - 3039
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume268
Issue number19
DOIs
Publication statusPublished - 1 Oct 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Nuclear and High Energy Physics

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