Spectroscopic properties of Er^(3+)-doped AlF_(3)-La_(2)O_(3)-Al_(2)O_(3)-SiO_(2) glasses

Debao Zhang; Baoyu Chen; Zhuping Liu; Shunguang Li; Lili Hu

Chinese Optics Letters, 2004, 2 (4): 04229, Published Online: Jun. 6, 2006

Spectroscopic properties of Er^(3+)-doped AlF_(3)-La_(2)O_(3)-Al_(2)O_(3)-SiO_(2) glasses

论文大纲

Debao Zhang Baoyu Chen Zhuping Liu Shunguang Li Lili Hu

Author Affiliations

Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800

160.2750 glass and other amorphous materials 160.5690 rare earth doped materials

Abstract

Er^(3+)-doped fluoride lanthanum aluminosilicate glasses with compositions of (65-x/2)SiO_(2).(25-x/2)Al_(2)O_(3).xAlF_(3).9.1La_(2)O_(3).0.6Er_(2)O_(3).0.3Yb_(2)O_(3) (x = 4, 8, 12, 20, 30) (mol%) were prepared and their glass transitiontemperatures and spectroscopic properties were investigated. The Ω_(2), Ω_(4), and Ω_(6) intensity parameters of glasses were calculated by Judd-Ofelt theory from absorption curves. It was found that glasses transition temperature and melting temperature decreased with the increase of fluoride content in glass, Ω_(2) decreased gradually with the increase of AlF_(3) content, but both Ω_(4) and Ω_(6) did not increase until AlF_(3) content increased to 30 mol%. The quantum efficiency of ^(4)I_(13/2) to ^(4)I_(15/2) transition of Er^(3+) ions increases with the increase of AlF_(3) content in glass. Fluorescent lifetime is longer in glass containing more AlF_(3) content.

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Debao Zhang, Baoyu Chen, Zhuping Liu, Shunguang Li, Lili Hu. Spectroscopic properties of Er^(3+)-doped AlF_(3)-La_(2)O_(3)-Al_(2)O_(3)-SiO_(2) glasses[J]. Chinese Optics Letters, 2004, 2(4): 04229.

Spectroscopic properties of Er^(3+)-doped AlF_(3)-La_(2)O_(3)-Al_(2)O_(3)-SiO_(2) glasses

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