Emission characteristics of Ge-Ga-S glasses doped with Tm3+/Ho3+

被引：37

作者：

Kim, YS ^{[1
]}

Cho, WY ^{[1
]}

Shin, YB ^{[1
]}

Heo, J ^{[1
]}

机构：

[1] POHANG UNIV SCI & TECHNOL,DEPT MAT SCI & ENGN,NONCRYSTALLINE MAT LAB,NAM KU,POHANG 790784,KYUNGBUK,SOUTH KOREA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1996年 / 203卷

关键词：

D O I：

10.1016/0022-3093(96)00349-3

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ge25Ga5S70(at.%) glasses doped with Tm3+ and Ho3+ were prepared and their emission characteristics were evaluated with an emphasis on the 2.02 mu m fluorescence from Ho3+:(I7I)-I-5-I-5-->(8) transition. With constant Ho3+ concentration, intensities of 2.02 mu m emission through the excitation of Tm3+ at 798 nm increased with Tm3+ content which indicates efficient energy transfer from Tm3+ to Ho3+. Rates of energy transfer also increased with Ho3+ concentration but competed against the upconversion phenomenon both in Tm3+ and Ho3+.

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页码：176 / 181

页数：6

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