Photonic crystal slab nanocavities containing one layer of quantum dots have exhibited: strong coupling to a single quantum dot; tuning by condensation of xenon gas; linewidth broadening due to ensemble dot absorption; gain and lasing.
Lasing behavior under optical pumping conditions is reported for photonic crystal double-heterostructure nanocavities with InAs quantum dot active regions. Coupling of this laser emission into a photonic crystal waveguide is also reported.
We have demonstrated high spontaneous emission coupling factor ~ 0.1 from photonic crystal nanolasers with quantum dots. This high coupling resulted from narrow homogenous broadening of the quantum dots and the small number of resonances
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