Polarized emission of PbWO4 and CdWO4 crystals

被引：7
|
作者：
Feldbach, E
Jönsson, L
Kirm, M
Kotlov, A
Lushchik, A
Nagirnyi, V
Svensson, G
Åsberg-Dahlborg, M
机构：
[1] Univ Tartu, Inst Phys, Tartu 51014, Estonia
[2] Univ Lund, Dept Phys, S-22363 Lund, Sweden
[3] Chalmers Univ Technol, Dept Inorgan Chem, S-41296 Gothenburg, Sweden
来源：
JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷
关键词：
tungstates; synchrotron radiation; polarization;
D O I：
10.1016/S0022-2313(99)00516-5
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Polarization properties of the main emission and the phosphorescence of PbWO4 and CdWO4 crystals have been investigated under polarized synchrotron excitation in the energy region 3.5-35 eV. Strong phosphorescence has been found 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 spectrum in a ratio specific for the each studied sample. The main emission and the phosphorescence of PbWO4 are both polarized along the C crystallographic 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 Science B.V. All rights reserved.
引用
收藏
页码：1213 / 1216
页数：4
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