Laser diode induced white light emission of γ-Al2O3 nano-powders

被引：17
|
作者：
Bilir, Gokhan [1 ,2 ]
Liguori, Joseph [2 ]
机构：
[1] Istanbul Tech Univ, Dept Phys, TR-34469 Istanbul, Turkey
[2] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA
来源：
JOURNAL OF LUMINESCENCE | 2014年 / 153卷
关键词：
Al2O3; White light emission; Laser diode excitation; UP-CONVERSION; LUMINESCENCE; GENERATION;
D O I：
10.1016/j.jlumin.2014.03.065
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A broadband white light emission was observed ranging from 450 to 900 nm from nominally un-doped gamma-Al2O3 nano-powders under 803.5 nm and 975 nm laser diode excitations. The white light emission has a strong dependence on both the environment pressure and the pumping laser power. We spectroscopically characterized this white light emission in a systematic way by collecting spectra, measuring decay- and rise patterns and changing parameters such as pumping power, pumping wavelength, environment temperature and pressure. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：350 / 355
页数：6
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