Anti-Stokes emission in LaAlO3 crystal doped with Tm3+ ions

被引：7

作者：

Deren, P. J. ^{[1
]}

Goldner, Ph. ^{[2
]}

Guillot-Noel, O. ^{[2
]}

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

[2] ENSCP, CNRS, UMR 7574, Lab Chim Appl Etat Solide, F-75231 Paris 05, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 461卷 / 1-2期

关键词：

thulium; perovskite; LaAlO3; anti-Stokes emission;

D O I：

10.1016/j.jallcom.2008.01.123

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

LaAlO3 single crystal doped with Tm3+ ions was investigated. After continuous wave excitation of the F-3(2) level (at about 15,115 cm(-1)) strong violet and UV light was observed which corresponds to the D-1(2) -> F-3(4) (22,000 cm(-1)) and the D-1(2) -> H-3(6) (27,700 cm(-1)) as well as the P-3(0) -> F-3(4) (28,600 cm(-1)) transition, respectively. Emission and excitation spectra of the Stokes and anti-Stokes emission were measured. Excitation spectrum was compared with absorption one. Power dependence of the anti-Stokes emission was recorded and analyzed. Possible mechanisms of three or more photons excited state absorption (ESA) and cross-relaxation are discussed. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：58 / 60

页数：3

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