Infrared to green up-conversion in LaCl3:U3+

被引：10

作者：

Yin, M

Joubert, MF

Krupa, JC

机构：

[1] UNIV SCI & TECHNOL CHINA,DEPT PHYS,HEFEI 230026,PEOPLES R CHINA

[2] UNIV LYON 1,LAB PHYS CHIM MAT LUMINESCENTS,CNRS,UMR 5620,F-69622 VILLEURBANNE,FRANCE

来源：

JOURNAL OF LUMINESCENCE | 1997年 / 75卷 / 03期

关键词：

up-conversion mechanism; low-temperature photoluminescence spectra; LaCl3:U3+;

D O I：

10.1016/S0022-2313(97)00122-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Investigations of the optical properties of LaCl3:U3+ (0.1%) Single crystal have revealed an interesting up-conversion phenomenon. When the (4)G(7/2) level of U3+ is excited by an infrared laser set at 748.6 nm, a strong green fluorescence from the K-2(15/2) level is observed. From the analysis of the dynamics of the excited states, we conclude that the observed phenomenon occurs mainly via two mechanisms: (i) excited-state absorption and (ii) an energy transfer up-conversion (ETU) process involving pairs of U3+ ions in (4)G(5/2) and F-4(9/2) states.

引用

页码：221 / 227

页数：7

共 11 条

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