High concentrations of aggregate colour centres in heavily irradiated LiF crystals

G. Baldacchini, F. Bonfigli, F. Menchini, R.M. Montereali

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Abstract

The stable formation of several colour centres (CCs) has been investigated in lithium fluoride (LiF) single crystals irradiated at room temperature (RT) and at 213 K by 5 MeV electrons with doses from 1019to 1023eV/cm3. The temperature during irradiation influences the production of aggregate defects, in particular the ratio between the F3+and F2laser active centres and the amount of parasitic complex defects. Optical absorption and photoluminescence spectra allow clarifying the role of different aggregate defects on the emission properties of the F3+and F2centres at concentrations up to 1018cm-3. © 2002 Elsevier Science Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)216 - 220
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume191
Issue number1-4
DOIs
Publication statusPublished - 2002

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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