Near infrared photoluminescence of Mg, Ca doped Bi₄Ge₃O₁₂ crystals and glasses

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• 作者：Pingsheng Yu^a ; ^{yupingsheng3110@163.com} ; Liangbi Su^b ; Jun Xu^b
• 关键词：Bi4Ge3O12 ; Near-infrared ; Photoluminescence
• 刊名：Optics Communications
• 出版年：2013
• 出版时间：1 September, 2013
• 年：2013
• 卷：304
• 期：Complete
• 页码：19-22
• 全文大小：634 K

文摘

Spectral properties in Mg and Ca doped Bi₄Ge₃O₁₂ (BGO) crystals and glasses were investigated. Near-infrared (NIR) photoluminescence was observed in Mg and Ca doped Bi₄Ge₃O₁₂ (BGO) crystals, while NIR emission in doped BGO glasses was very weak. There is no fundamental difference about NIR emission between Mg²⁺ and Ca²⁺ doped BGO crystals, and the emission center is still related to Bi ions, the doped ions can influence energy level of Bi ions.