外文题目: Spectroscopic properties and energy transfer mechanism in Dy3+/Tm3+ codoped fluoroaluminate glasses modified by TeO2
作者: Huang, Feifei; Tian, Ying; Chen, Danping; Xu, Shiqing; Zhang, Junjie
刊名: Ceram. Int.
年: 2016 卷: 42 期: 1 页： 132--137
英文关键词:
Mid-infared; Fluorotellurite glass; Judd-Ofelt; Energy transfer
RARE-EARTH IONS; 2.9 MU-M; OPTICAL-PROPERTIES; FIBER LASER; FLUOROPHOSPHATE GLASSES; FLUOROTELLURITE GLASSES; MIDINFRARED EMISSIONS; CHALCOHALIDE GLASSES; DY3+; FLUOROZIRCONATE
英文摘要:
This paper investigates 2.9 mu m emission properties and energy transfer processes in the Dy3+/Tm3+ codoped fluorotellurite glass. The measured absorption spectra demonstrate that the codoped sample can be efficiently pumped by an 800 nm excitation. Judd-Ofelt and radiative parameters are calculated and discussed. Higher spontaneous emission probability (39.6 S-1) provides a better probability to obtain laser action. Obvious 2.9 mu m emission of Dy3+: H-6(13/2)-> 6H(15/2) transition is observed after codoping with Tm3+ and the optimum ratio in this system is 1:1. Energy transfer processes between the two ions are discussed and the related microscopic interaction parameters are calculated. Hence, these results indicate that the Dy3+/Tm3+ codoped fluorotellurite glass is a suitable material for developing solid state laser at approximately 3.0 mu m. (C) 2015 Published by Elsevier Ltd and Techna Group S.r.l.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1016/j.ceramint.2015.08.031


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