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- W2045900900 abstract "Low-temperature photoluminescence of epitaxial GaAs codoped with erbium and oxygen is investigated. Samples are prepared by low-pressure organometallic vapor phase epitaxy at optimized growth conditions providing formation of Er-2O luminescent centers. The low-temperature spectral bandwidth of the predominant emission line at 1538.1 nm is measured to be approximately 0.04 nm. The decay time of approximately 1.1 ms is measured for the Er-related emission at 77 K. Stimulated emission is identified at 77 K from gain measurements by variable-stripe-length method. The measured gain up to 45 cm<SUP>-</SUP> at pumping power density of 0.1 kW/cm<SUP>2</SUP>. The model is presented that explains sublinear power dependence of the Er-related spontaneous luminescence." @default.
- W2045900900 created "2016-06-24" @default.
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- W2045900900 date "2002-04-05" @default.
- W2045900900 modified "2023-09-26" @default.
- W2045900900 title "1.54-μm spontaneous and stimulated emission of Er-2O centers in GaAs: experiments and modeling" @default.
- W2045900900 doi "https://doi.org/10.1117/12.461666" @default.
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