کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5399847 1505904 2014 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectroscopic properties of Er3+-doped sodium-modified tellurite glasses for use as optical amplifiers at 1540 nm
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Spectroscopic properties of Er3+-doped sodium-modified tellurite glasses for use as optical amplifiers at 1540 nm
چکیده انگلیسی
The impact of different sodium concentrations on the thermal properties and near-infrared emission at 1540 nm of Er3+-doped tellurite glasses was investigated. The glasses were characterized by UV-visible-near-infrared absorption spectroscopy, emission spectroscopy, Raman spectroscopy, refractive index measurements, and lifetime estimates. A theoretical analysis of the prepared samples was performed with the Judd-Ofelt parameters, radiative transition probability, quantum yield, and radiative lifetime. The glasses presented a large calculated emission cross-section at around 1537 nm (8.4×10−21 cm2) and a good quantum yield (93%). The spectroscopic quality factors (Ω4/Ω6) obtained for the samples showed good agreement with the emission spectrum and bandwidth in the near-infrared region. The advantageous spectroscopic characteristics, together with good thermal stability, indicate that the glasses have potential applications as 1540 nm waveguides.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 156, December 2014, Pages 116-123
نویسندگان
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