Polarized emission of PbWO4 and CdWO4 crystals

Authors
Feldbach, E Jonsson, L Kirm, M Kotlov, A Lushchik, A Nagirnyi, V Svensson, G Asberg-Dahlborg, M
Citation
E. Feldbach et al., Polarized emission of PbWO4 and CdWO4 crystals, J LUMINESC, 87-9, 2000, pp. 1213-1216
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LUMINESCENCE
ISSN journal
00222313 → ACNP
Volume
87-9
Year of publication
2000
Pages
1213 - 1216
Database
ISI
SICI code
0022-2313(200005)87-9:<1213:PEOPAC>2.0.ZU;2-M
Abstract
Polarization properties of the main emission and the phosphorescence of PbW O4 and CdWO4 crystals have been investigated under polarized synchrotron ex citation in the energy region 3.5-35 eV. Strong phosphorescence has been fo und at temperatures 4.2-50 K in all available PbWO4 samples. Both the blue and the green emission bands are present in the phosphorescence emission sp ectrum in a ratio specific for the each studied sample. The main emission a nd the phosphorescence of PbWO4 are both polarized along the C crystallogra phic axis in the full excitation region investigated. The main emission of CdWO4. is polarized in a plane normal to the C axis. (C) 2000 Elsevier Scie nce B.V. All rights reserved.