Modelling the optical bleaching of a complex TL signal

Thermoluminescence (TL) intensity decrease is observed in many materials after optical stimulation and is called optical bleaching of TL. The optical bleaching of a TL peak does not always mean that the traps responsible for this peak are emptied by stimulating light. The McKeever model explains TL...

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Bibliographic Details
Published inJournal of physics. D, Applied physics Vol. 39; no. 11; pp. 2321 - 2329
Main Author CHRUSCINSKA, A
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 07.06.2006
Institute of Physics
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other luminescence and radiative recombination
Physics
Thermoluminescence
Charge carrier trapping
Band structure
Stimulated emission
Bleaching
Charge carrier recombination
Modelling
Luminescence decay
Deep level
Thermoluminescence
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Summary:Thermoluminescence (TL) intensity decrease is observed in many materials after optical stimulation and is called optical bleaching of TL. The optical bleaching of a TL peak does not always mean that the traps responsible for this peak are emptied by stimulating light. The McKeever model explains TL bleaching by the emptying of deep thermally disconnected traps. The modification of this model is used for simulating the optical bleaching of complex TL curves in the case of complex TL spectrum. Some characteristic outcomes important for interpreting the results of TL optical bleaching measurements are reported.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/39/11/001