| Structural and Upconversion Fluorescence Properties of Er^3＋／Yb^3＋-Codoped Lead-Free Germanium-Bismuth Glass |
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| 引用本文： | 孙洪涛,张丽艳,段忠超,于春雷,张军杰,戴世勋,胡丽丽,姜中宏.Structural and Upconversion Fluorescence Properties of Er^3＋／Yb^3＋-Codoped Lead-Free Germanium-Bismuth Glass[J].中国物理快报,2005,22(5):1249-1252. |
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| 作者姓名： | 孙洪涛 张丽艳 段忠超 于春雷 张军杰 戴世勋 胡丽丽 姜中宏 |
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| 作者单位： | [1]ShanghaiInstituteofOpticsandFineMechanics,ChineseAcademyofSciences,Shanghai201800／／GraduateSchooloftheChineseAcademyofSciences,Beijing100039 [2]ShanghaiInstituteofOpticsandFineMechanics,ChineseAcademyofSciences,Shanghai201800 |
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| 摘 要： | We study the structural and infrared-to-visible upconversion fluorescence properties of Er^3 /yb^3 -codoped leadfree germanium-bismuth glass. The structure of lead-free germanium-bismuth-lanthanum glass is investigated by peak-deconvolution of F~aman spectroscopy. Intense green and red emissions centred at 525, 546, and 657nm,corresponding to the transitions ^2H11/2 → 4I15/2, ^4S3/2 → 4I15/2, and 4F9/2 → 4I15/2, respectively, are observed at room temperature. The quadratic dependence of the 525, 546, and 657nm emissions on excitation power indicates that a two-photon absorption process occurs under 975nm excitation.
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| 关 键 词： | 上转换荧光性质 锗铋玻璃 铒镱掺杂 拉曼光谱 短波长激光 |
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