Lasing properties of non-polar GaN quantum dots in cubic aluminum nitride microdisk cavities
作者： M. Bürger , G. Callsen , T. Kure , A. Hoffmann , A. Pawlis
DOI: 10.1063/1.4813408
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摘要: We demonstrate laser emission from optically pumped non-polar cubic GaN quantum dots embedded in aluminum nitride microdisks. Power dependent micro-photoluminescence studies at low temperature (∼10 K) revealed S-shaped curves of the integral mode intensity. observed whispering gallery modes with quality factors up to 5000 high energy side (4 eV, i.e., ∼310 nm wavelength) photoluminescence spectra microdisks a diameter 2.5 μm. Furthermore, we have determined spontaneous coupling β = 0.12 and β = 0.42 for resonator different radial orders.
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