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The effect of thermal annealing on luminescence centres in Ge-silica fibres

Kirsh, Y., Townsend, P.D. and Townsend, J.E. (1992) The effect of thermal annealing on luminescence centres in Ge-silica fibres Journal of Thermal Analysis and Calorimetry, 37, (6), pp. 1153-1160. (doi:10.1007/BF01913851).

Record type: Article

Abstract

The radioluminescence spectrum of Ge-silica fibres doped with Nd is found to change by the effect of pre-irradiation and thermal annealing. Originally the spectrum consists of a gaussian band centred near 3.1 eV (400 nm). Following the irradiation and heating an additional asymmetric band appears near 2.4 eV (520 nm). On top of this band there is a line spectrum, which can be ascribed to internal transitions of the Nd3+. On the basis of the spectroscopic data and previous results of thermoluminescence measurements, a model is suggested for the luminescence and the effect of the thermal annealing. The blue and green bands are ascribed to an O2' molecular ion and a hole centre near the Nd3+ ion, respectively.

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Published date: 1992

Identifiers

Local EPrints ID: 78386
URI: http://eprints.soton.ac.uk/id/eprint/78386
ISSN: 1388-6150
PURE UUID: e4c0c274-4050-46f4-b864-cb48a2a1c353

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:24

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Contributors

Author: Y. Kirsh
Author: P.D. Townsend
Author: J.E. Townsend

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