Red-IR stimulated luminescence in K-feldspar: Single or multiple trap origin?

Martin Thalbitzer Andersen, Mayank Jain, Peter Tidemand-Lichtenberg

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Abstract

We investigate on the origins of the infra-red stimulated luminescence (IRSL) signals in 3 potassium feldspars based on IR-red spectroscopy (700–1050 nm) using a fiber-coupled tunable Ti:Sapphire laser, in combination with different thermal and optical (pre)treatments of the samples. We also measure dose-response curves with different wavelengths and at different stimulation temperatures so as to be able to distinguish between traps based on their electron trapping cross-sections. Our data suggest that the dosimetric signals, IRSL, and the post IR-IRSL in K-feldspars arise from a single electron trapping centre. © 2012 American Institute of Physics.
Original languageEnglish
JournalJournal of Applied Physics
Volume112
Pages (from-to)043507
Number of pages12
ISSN0021-8979
DOIs
Publication statusPublished - 2012

Bibliographical note

Copyright (2012) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics / Volume 112 / Issue 4 and may be found at http://jap.aip.org/resource/1/japiau/v112/i4/p043507_s1.

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