Optical absorption of Co2+-doped silica gel-derived glasses

被引：9

作者：

Duan, XL ^{[1
]}

Yuan, DR ^{[1
]}

Cheng, XF ^{[1
]}

Wang, XQ ^{[1
]}

Wang, ZM ^{[1
]}

Xu, D ^{[1
]}

Lv, MK ^{[1
]}

机构：

[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

OPTICAL MATERIALS | 2003年 / 23卷 / 1-2期

关键词：

sol-gel method; monolithic samples; UN Vis-NIR spectra;

D O I：

10.1016/S0925-3467(02)00312-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Monolithic samples of silica and Co-doped silica gels were obtained by the sol-gel method and heat-treated at temperatures from 40 to 1000 degreesC. The colors of Co-doped silica samples depended on heat-treatment temperature. Ultraviolet, visible and near-infrared (NIR) absorption spectra of the samples heated at different temperatures were recorded and compared with those of undoped silica samples. Results showed that 0.4 wt.% Co-doped silica samples heated at temperatures ranging 750-1000 degreesC exhibited broad absorption band in the range of 1200 1600 nm, and the intensity of the absorption band increased with heat-treatment temperatures. Co-doped silica glass is potential to be used as a kind of laser passive Q-switching material in NIR range. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：327 / 330

页数：4

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