Formation of infrared femtosecond laser induced colour centres in Tb3+-doped and Tb3+/Ce3+-codoped heavy germanate glasses

被引：5

作者：

Chen, GR ^{[1
]}

Yang, YX

Qiu, JR

Jiang, XW

Hirao, K

机构：

[1] E China Univ Sci & Technol, Dept Inorgan Mat, Shanghai 200237, Peoples R China

[2] Japan Sci & Technol Corp, Photon Craft Project, Kyoto 6190237, Japan

[3] Kyoto Univ, Fac Engn, Div Mat Chem, Kyoto 6068501, Japan

来源：

CHINESE PHYSICS LETTERS | 2003年 / 20卷 / 11期

关键词：

D O I：

10.1088/0256-307X/20/11/027

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The formation of infrared femtosecond laser induced colour centres was observed in Tb3+-doped and Tb3+/Ce3+-codoped heavy germanate glasses. A rectangular scan was made by focusing the laser beam inside the glass samples. A three-dimensional yellowish block was created from the path and it corresponded to the appearance of broad absorption bands in the absorption spectra. The irradiation induced absorption coefficient mu(lambda) was used to characterize the distribution of radiation induced colour centres in the samples, whose peak was located at 380 nm and extended to the longer wavelength. Ce3+ ions were found not only to inhibit the formation of colour centres, but also to enhance the recovery.

引用

页码：1997 / 2000

页数：4

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