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- W2894429823 abstract "The effect of the presence of ytterbium (Yb3+) on the near-infrared (NIR) emission profile of erbium (Er3+), more specifically the 4I13/2 → 4I15/2 radiative transition around 1.5 μm, in yttrium silicate crystalline ceramic powders prepared by combustion synthesis was investigated under different NIR laser excitation wavelengths (λ = 808 and 975 nm). Enhancement of fluorescence around 1.5 μm due to the presence of Yb3+ was observed, which has potential use in medicine (NIR-III biological window) and optical communications (C-band transmission window). Two different excitation channels involving energy transfer between Er3+ and Yb3+ were studied: one involving the sensitization of Er3+ by Yb3+ (for λ = 975 nm laser light excitation) and the other involving direct excitation of Er3+ with Yb3+ acting as an energy reservoir (for λ = 808 nm laser light excitation). The energy transfer mechanisms of both processes are discussed in the text." @default.
- W2894429823 created "2018-10-05" @default.
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- W2894429823 creator A5024622930 @default.
- W2894429823 date "2018-11-02" @default.
- W2894429823 modified "2023-10-16" @default.
- W2894429823 title "Enhancement of 1.5 μm fluorescence signal from Er3+ due to Yb3+ in yttrium silicate powders pumped at 975 and 808 nm" @default.
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- W2894429823 doi "https://doi.org/10.1088/2050-6120/aae475" @default.
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