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Strong resonant light emission in the wavelength range of 1.3–1.5μm from self-assembled Ge quantum dots (QDs) embedded in double heterostructure photonic crystal (PhC) nanocavities are demonstrated at room-temperature. The Ge QDs are grown on silicon-on-insulator (SOI) substrates by solid-source molecular beam epitaxy. Under optical excitation, light emission enhancement by a factor >150 at resonant...
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