کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1625088 1516425 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Up-conversion and fluorescence quenching processes studies in highly Pr3+-doped YAG waveguides
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Up-conversion and fluorescence quenching processes studies in highly Pr3+-doped YAG waveguides
چکیده انگلیسی

In this work we report on results of our spectroscopic investigations applied to highly Pr-doped YAG planar waveguides. The technology of liquid phase epitaxy (LPE), utilized for active waveguides preparation, provided us with a unique set of samples with active ions concentrations as high as 6 at.%, which is impossible to obtain in bulk YAG. This encouraged us to perform an analysis of main processes responsible for up-converted excitation of emitting levels and fluorescence quenching. Visible fluorescence spectra and corresponding decay profiles obtained under direct and up-converted excitation were examined for wide selection of activator concentrations. The time-dependent rate equation model has been developed in order to describe and better understand possible processes involved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 451, Issues 1–2, 28 February 2008, Pages 190–193
نویسندگان
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