کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10633473 | 993036 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Glassy and nanocrystalline photonic materials and structures by sol-gel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Glassy and nanocrystalline photonic materials and structures by sol-gel Glassy and nanocrystalline photonic materials and structures by sol-gel](/preview/png/10633473.png)
چکیده انگلیسی
Erbium-doped photonic materials and structures have been prepared by sol-gel, in the form of silica-hafnia based optical planar waveguides and 1-D photonic bandgap structures consisting of alternating silica and titania layers. The Er3+ ions were found to be sensitive probes of the waveguide glass matrix structure, especially when hafnium-containing nanocrystallites were present, which narrowed and resolved different Stark components in the photoluminescence peaks. In 1-D Fabry-Perot microcavities, on the other hand, efficient energy transfer was observed from Yb3+ to Er3+ ions when these were present simultaneously in the same defect layer, but not when the two types of ions were isolated in separate defect layers of coupled microcavities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 27, Issue 11, October 2005, Pages 1718-1725
Journal: Optical Materials - Volume 27, Issue 11, October 2005, Pages 1718-1725
نویسندگان
Rui M. Almeida, Ana C. Marques, Sabine Portal,