Low threshold, room-temperature microdisk lasers in the blue spectral range
نویسندگان
چکیده
منابع مشابه
Scaled Microdisk Lasers a Doctoral Dissertation
Microdisk lasers, based on whispering gallery optical resonances, have recently attracted considerable attention. The interest in microdisk lasers is driven by, amongst other factors, their potential for low-threshold power, ease of fabrication and in-plane emission characteristics. However, there are a few key challenges that need to be overcome for these devices to become practical, chief amo...
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A Strong temperature dependence of microdisk lasers and photonic crystal nanocavity lasers with InAs quantum dot active regions is reported. These lasers operate at 1.3 microm at room temperature under optical pumping conditions. T(0, microdisk) = 31 K. T(0, photonic crystal nanocavity) = 14 K. The lasing threshold dependence on the lasing wavelength is also reported. We observe a minimum absor...
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UNLABELLED Ultrasmall microring and microdisk lasers with an asymmetric air/GaAs/Al0.98Ga0.02As waveguide and an active region based on InAs/InGaAs/GaAs quantum dots emitting around 1.3 μm were fabricated and studied. The diameter D of the microrings and microdisks was either 2 or 1.5 μm, and the inner diameter d of the microrings varied from 20% to 70% of the outer diameter D. The microring wi...
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