LASER-EXCITED LUMINESCENCE IN TI-DOPED MGAL2O4 SPINEL

被引：29

作者：

BAUSA, LE ^{[1
]}

VERGARA, I ^{[1
]}

GARCIASOLE, J ^{[1
]}

机构：

[1] POLISH ACAD SCI,INST LOW TEMP & STRUCT RES,PL-50950 WROCLAW,POLAND

来源：

JOURNAL OF APPLIED PHYSICS | 1990年 / 68卷 / 02期

关键词：

D O I：

10.1063/1.346807

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The photoluminescence (excitation, emission, and fluorescence decay time) spectra of spinel (Ti:MgAl2O4) excited by pulsed Nd:YAG and dye lasers have been systematically investigated. Excitation into the T 2g→Eg crystal-field transition of Ti3+ produces a broad infrared emission band at 805 nm which could, in principle, be used for tunable laser applications. Two different Ti3+ centers with lifetimes of 4.2 and 41 μs contribute to this emission. At the same time this IR band can also be observed under high-intensity excitation in the ultraviolet region (266 nm) via a two-photon process.

引用

页码：736 / 740

页数：5

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