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

页码：350 / 355

页数：6

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