Photon trapping in ruby and lanthanide-doped materials: Recollections and revival

François Auzel, Giuseppe Baldacchini

Research output: Contribution to journalArticle

11 Citations (Scopus)


After some recollections of phonon and photon trapping in ruby, a critical review of this effect of renewed interest in trivalent lanthanide-doped materials is presented showing that the two independent derivations taking their roots in the work of Milne for gases and of Birks for organic scintillators are practically described by an analogous phenomenological equation when re-absorption is weak. The problem of obtaining "extrinsic" quantum efficiency larger than one is briefly discussed. © 2006 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)25 - 30
Number of pages6
JournalJournal of Luminescence
Issue number1-2
Publication statusPublished - Jul 2007
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

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