کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5428433 1508674 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced broadband near-infrared luminescence and its origin in Yb/Bi co-doped borophosphate glasses and fibers
ترجمه فارسی عنوان
پهنای باند پیشرفته لومینسانس نزدیک مادون قرمز و منشاء آن در عینک های الیاف و الیاف بوروفسفات دو طرفه یب / بی
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
چکیده انگلیسی


- Broadband near-infrared emission from Yb/Bi co-doped borophosphate glasses and fibers was investigated.
- The mechanism of Bi ions luminescence was discussed.
- The infrared emissions pumped by 808 nm and 976 nm LDs were ascribed to Bi+ and Bi2+, respectively.

Yb/Bi co-doped borophosphate glasses and fibers were prepared. The effect of Yb3+ on the near-infrared (NIR) luminescent properties and the mechanism of luminescence of Bi-ions were investigated. Under 976 nm laser diode (LD) excitation, the NIR emission intensity of the glass with 8 mol% Yb2O3 co-doped glass is ~37 times stronger than that of Bi singly-doped glass. The fluorescence lifetime increases by ~7 times with 5 mol% Yb2O3 co-doped glass. The energy transfer efficiency is ~59.1%. It is also suggested that the broadband NIR luminescence pumped by 808 nm and 976 nm LDs derives from Bi+ and Bi2+, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 141, July 2014, Pages 9-13
نویسندگان
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