کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7902971 | 1510455 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Infrared emission properties of Dy3Â +-doped and Dy3Â +,Tm3Â +-codoped chalcohalide glasses
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Series of 76GeS2·19Ga2S3·5AgCl (GGA) chalcohalide glasses doped with or codoped with Dy3 +, Tm3 + were prepared in this work. Systematical detection of absorption and emission spectra in the near-infrared and mid-infrared region was conducted. For the Dy3 + sole-doped GGA chalcohalide glasses, mainly due to the relatively low efficiency of pumping absorption and poor radiative transition probabilities of mid-infrared emissions, the mid-infrared emissions were hardly to be detected. Through the codoping of Tm3 + with high concentration, several intrinsical processes including the enhancement of pumping absorptive efficiency at 808 nm, cross relaxation process of Tm3 +: 3H4 + 3H6 â 3F4 + 3F4 and energy transfer process of Tm3 +: 3F4 â Dy3 +: 6H11/2 are carried out, therefore relatively strong mid-infrared emissions at about 2900 and 4300 nm have been clearly observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 383, 1 January 2014, Pages 205-208
Journal: Journal of Non-Crystalline Solids - Volume 383, 1 January 2014, Pages 205-208
نویسندگان
Gu Shaoxuan, Pi Daoxian, Tao Haizheng, Zeng Qi, Zhao Xiujian, Guo Haitao, Chen Hongyan,