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Publication Detail
Optical properties of PECVD erbium-doped silica: evidence for energy transfer between silicon microclusters and erbium ions
Abstract
We report the fabrication by PECVD of silicon-rich erbium-doped silica films that exhibit both 1535 nm fluorescence and visible photoluminescence. Fluorescence spectra are presented along with absorption spectra that display a strong band edge in the blue, which we ascribe to the presence of Si microclusters. We are unable to observe characteristic Er3+ absorption bands and propose that excitation of the rare earth is via an energy transfer process from Si microclusters.
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Dept of Electronic & Electrical Eng
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