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Absorption and Emission Analysis of RE3+(Sm3+ and Dy3+): Lithium Boro Tellurite Glasses

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This paper reports on the development and spectral analysis of Sm3+ (1.0%) and Dy3+ (1.0%) doped lithium-boro-tellurite glasses. Abright orange (4G5/26H7/2) along with a red (4G5/26H9/2) and a yellow (4G5/26H5/2) emission transition have been measured from Sm3+ doped lithium-boro-tellurite glass. Both blue (4F9/26H15/2) and yellow (4F9/26H13/2) emission bands have been obtained from Dy3+ glass. From the measured decay profiles, the lifetimes of the emissions of the Sm3+ glass (4G5/26H5/2, 7/2, 9/2 and 11/2) at an excitation of 401 nm have been found to be in the range 0.47–0.81 ms, and with respect to the Dy3+ emissions (4F9/26H15/2 and 13/2), with excitation at 450 nm, are measured to be in the range of 0.302–0.307 ms. Stimulated emission cross-sections (σ E p ) of the measured emission transitions have also been computed and the values are in the range of (0.38–1.20) × 10−20 cm2 for Sm3+ and for Dy3+ doped lithium-boro-tellurite glass the values are (0.66–1.39) × 10−20 cm2.


Document Type: Research Article


Publication date: 2009-06-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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