Open AccessNondestructive in situ thermoluminescence using CO_2 laser heating
Author(s) -
J.L. Lawless,
S. K. Lam,
Dennis Lo
Publication year - 2002
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.10.000291
Subject(s) - thermoluminescence , materials science , optics , laser , ceramic , thermoluminescence dating , mineralogy , optoelectronics , composite material , luminescence , chemistry , physics
We have obtained thermoluminescence glow curves nondestructively from large, solid, ceramic samples by laser spot heating. Although the samples are brittle, laser thermoluminescence glow curves could be obtained with no visible damage to the samples. The experimental glow curves match with theory. By contrast, conventional thermoluminescence measurements require small samples to be removed from a ceramic and placed in a thermoluminescence machine. Laser-induced thermoluminescence glow curves from LiF, silica, and porcelain are presented.