Abstract
The F-band absorption and thermoluminescence (TL) of as-cleaved or quenched KBr single crystals after X-ray irradiation and later exciting with a laser beam have been studied. The F-centre concentration at room temperature is considerably reduced with laser excitation as is the TL output. These experiments indicate that a considerable concentration of F-centres in X-ray irradiated KBr crystals can be destroyed even at room temperature by laser excitation. An attempt is made to interpret these results.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. H. Crawford Jr andL. M. Slifkin, “Point defects in Solids”, Vol. I (Plenum New York, 1972).
J. H. Schulman andW. D. Compton, “Colour centres in Solids” (Pergamon, London, 1963).
P. K. Chakraborti andK. V. Rao,Phys. Status Solidi (b) 120 (1983) K107.
G. T. Hageseth,Phys. Rev. B5 (1971) 4060.
S. Govinda andK. V. Rao,Solid State Commun. 16 (1975) 297.
S. Govinda, PhD dissertation, Indian Institute of Technology, Kharagpur (1975).
D. Enakshi andK. V. Rao,Physica Scripta 31 (1985) 219.
Idem, Nuclear Tracks 10 (1985) 71.
A. K. Gupta andK. V. Rao,Phys. Status Solidi (a) 59 (1979) 277.
P. K. Chakraborti andK. V. Rao,Cryst. Latt. Def. Amorph. Mater. 10 (1983) 67.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Prasad, G., Roul, B.K., Chaudhary, R.N.P. et al. Effect of laser excitation on F-band absorption and thermoluminescence of X-ray irradiated KBr single crystals. J Mater Sci 21, 4315–4317 (1986). https://doi.org/10.1007/BF01106548
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01106548