Near- and mid-infrared emissions of Dy³⁺ doped and Dy³⁺/Tm³⁺co-doped lead cesium iodide modified chalcohalide glasses

详细信息    查看全文

• 作者：Haitao Guo ; Yantao Xu ; Hongyan Chen ; Xin He ; Xiaoxia Cui ; Pengfei Wang ; Min Lu ; Weinan Li ; Chaoqi Hou ; Bo Peng
• 关键词：Chalcohalide glass ; Rare-earth ions ; Spectroscopy ; Luminescence ; Judd&ndash ; Ofelt
• 刊名：Journal of Luminescence
• 出版年：April, 2014
• 年：2014
• 卷：148
• 期：Complete
• 页码：10-17
• 全文大小：650 K

文摘

0.2 wt% Dy³⁺ doped and 0.2 wt% Dy³⁺/0.5 wt% Tm³⁺ co-doped novel GeS₂-Ga₂S₃-PbS-CsI chalcohalide glasses were prepared and their spectroscopic properties were analyzed based on absorption (ranges from 300 to 3000 nm) and emission (ranges from 1000 to 4700 nm) measurements. Judd-Ofelt analyses were performed to estimate radiative transition parameters for the excited levels. Compositional dependences of near- and mid-infrared luminescences (especially the 1330, 2930 and 4320 nm) excited at 808 nm were investigated and discussed. These novel chalcohalide glasses may have potential uses in 1.3 渭m fiber-amplifiers and 2.9 or 4.3 渭m mid-infrared laser devices.