کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10653145 1002841 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal properties and polarized spectral analysis of Tm3+:SrWO4 crystal
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Thermal properties and polarized spectral analysis of Tm3+:SrWO4 crystal
چکیده انگلیسی
Tm3+:SrWO4 crystal of good optical quality with sizes of 15 mm×60 mm was grown successfully by Czochralski technique method. The orientation procedure of this crystal was discussed. The principal coefficients of thermal expansion along (001), (010), (100) directions were precisely measured to be 2.73×10−5, 1.00×10−5, 1.05×10−5 °C−1, respectively. Based on the Judd-Ofelt theory, we obtained the three intensity parameters: Ω2=7.41×10−20, Ω4=0.25×10−20, and Ω6=1.71×10−20 cm2. The radiative probabilities, radiative life times, and branch ratios of Tm3+:SrWO4 were calculated. The room temperature polarized fluorescent spectra and fluorescent decay curve were measured. The luminescent quantum efficiency of the 3H4 level was investigated and the quantum efficiency is determined to be approximately 69.84% for this material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 134, Issue 9, June 2005, Pages 583-588
نویسندگان
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