Lanthanum lutetium gallium garnets doped with Cr3+ and Nd3+ ions:: analyses of elemental composition and energy transfer

被引:7
|
作者
Özen, G [1 ]
Belin, B [1 ]
Yildirim, G [1 ]
Güven, H [1 ]
机构
[1] Istanbul Tech Univ, Dept Phys, TR-80626 Istanbul, Turkey
关键词
D O I
10.1016/S0030-4018(99)00620-3
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A series of experiments was carried out in order to determine the elemental concentration of a sample doped with Cr3+, and to elucidate the nature of the energy transfer process between the Cr3+ and Nd3+ ions in lanthanum lutetium gallium garnets. Elemental concentrations were determined using the instrumental neutron activation and X-ray fluorescence techniques. Nature of the energy transfer was studied by obtaining the spectral data on the single doped samples with Cr3+ and Nd3+, and on the double doped sample with both ions. These data include absorption, luminescence, excitation spectra and pulsed excitation. The Cr --> Nd transfer efficiency, eta, was quantitatively determined to be 0.59 at room temperature. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:341 / 347
页数:7
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