کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10653210 | 1002850 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Upconversion fluorescence property of Er3+/Yb3+-codoped novel bismuth-germanium glass
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Infrared-to-visible upconversion fluorescence property of Er3+/Yb3+-codoped novel bismuth-germanium glass under 975Â nm LD excitation has been studied. Intense green and red emissions centered at 525, 546 and 657Â nm, corresponding to the transitions 2H11/2â4I15/2, 4S3/2â4I15/2, and 4F9/2â4I15/2, respectively, were observed at room temperature. The quadratic dependence of the 525, 546 and 657Â nm emissions on excitation power indicates that a two-photon absorption process occurs. The structure of the bismuth-germanium glass has been investigated by peak-deconvolution of FT-Raman spectrum, and the structural information was obtained from the peak wavenumbers. This novel bismuth-germanium glass with low maximum phonon energy (â¼750Â cmâ1) can be used as potential host material for upconversion lasers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 133, Issue 12, March 2005, Pages 781-784
Journal: Solid State Communications - Volume 133, Issue 12, March 2005, Pages 781-784
نویسندگان
Hongtao Sun, Liyan Zhang, Junjie Zhang, Lei Wen, Chunlei Yu, Shixun Dai, Lili Hu, Zhonghong Jiang,