Research paperExperimental GrowthExperimental CharacterizationLow-threshold lasing of optically pumped micropillar lasers with Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectorsChing-Wen Shih, Imad Limame, Sebastian Krüger, Chirag C. Palekar et al.2023·10.1063/5.0143236·arXiv:2301.08026AbstractThe paper reports the design, realization, and characterization of optically pumped micropillar lasers using low-absorbing Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectors. InGaAs quantum dots are embedded in a GaAs cavity as the active medium. The work shows that the modified DBR design opens an optical pumping window from 700 nm to 820 nm, improves pump conversion efficiency, and reduces lasing threshold by more than an order of magnitude when switching the pump wavelength from 671 nm to 708 nm.Read more
Fabricated micropillar laser with modified Al0.2Ga0.8As/Al0.9Ga0.1As DBRs and an embedded InGaAs quantum-dot active region in a GaAs lambda cavity.2 preparations2 characterizations8 properties2 figuresExperimentalInGaAsStudied MaterialGaAsStudied MaterialAl0.2Ga0.8AsStudied MaterialAl0.9Ga0.1AsStudied MaterialGaAsSubstrate / DielectricExpand
Conventional micropillar cavity design used for transfer-matrix comparison against the modified DBR design.No measurements recordedSimulatedAlGaAs/GaAs distributed Bragg reflectorStudied MaterialGaAsStudied MaterialAl0.2Ga0.8AsStudied MaterialAl0.9Ga0.1AsStudied MaterialInGaAsStudied MaterialExpand
Research paperExperimental GrowthExperimental CharacterizationLow-threshold lasing of optically pumped micropillar lasers with Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectorsChing-Wen Shih, Imad Limame, Sebastian Krüger, Chirag C. Palekar et al.2023·10.1063/5.0143236·arXiv:2301.08026AbstractThe paper reports the design, realization, and characterization of optically pumped micropillar lasers using low-absorbing Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectors. InGaAs quantum dots are embedded in a GaAs cavity as the active medium. The work shows that the modified DBR design opens an optical pumping window from 700 nm to 820 nm, improves pump conversion efficiency, and reduces lasing threshold by more than an order of magnitude when switching the pump wavelength from 671 nm to 708 nm.Read more
Fabricated micropillar laser with modified Al0.2Ga0.8As/Al0.9Ga0.1As DBRs and an embedded InGaAs quantum-dot active region in a GaAs lambda cavity.2 preparations2 characterizations8 properties2 figuresExperimentalInGaAsStudied MaterialGaAsStudied MaterialAl0.2Ga0.8AsStudied MaterialAl0.9Ga0.1AsStudied MaterialGaAsSubstrate / DielectricExpand
Conventional micropillar cavity design used for transfer-matrix comparison against the modified DBR design.No measurements recordedSimulatedAlGaAs/GaAs distributed Bragg reflectorStudied MaterialGaAsStudied MaterialAl0.2Ga0.8AsStudied MaterialAl0.9Ga0.1AsStudied MaterialInGaAsStudied MaterialExpand
Research paperExperimental GrowthExperimental CharacterizationLow-threshold lasing of optically pumped micropillar lasers with Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectorsChing-Wen Shih, Imad Limame, Sebastian Krüger, Chirag C. Palekar et al.2023·10.1063/5.0143236·arXiv:2301.08026AbstractThe paper reports the design, realization, and characterization of optically pumped micropillar lasers using low-absorbing Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectors. InGaAs quantum dots are embedded in a GaAs cavity as the active medium. The work shows that the modified DBR design opens an optical pumping window from 700 nm to 820 nm, improves pump conversion efficiency, and reduces lasing threshold by more than an order of magnitude when switching the pump wavelength from 671 nm to 708 nm.Read more
Fabricated micropillar laser with modified Al0.2Ga0.8As/Al0.9Ga0.1As DBRs and an embedded InGaAs quantum-dot active region in a GaAs lambda cavity.2 preparations2 characterizations8 properties2 figuresExperimentalInGaAsStudied MaterialGaAsStudied MaterialAl0.2Ga0.8AsStudied MaterialAl0.9Ga0.1AsStudied MaterialGaAsSubstrate / DielectricExpand
Conventional micropillar cavity design used for transfer-matrix comparison against the modified DBR design.No measurements recordedSimulatedAlGaAs/GaAs distributed Bragg reflectorStudied MaterialGaAsStudied MaterialAl0.2Ga0.8AsStudied MaterialAl0.9Ga0.1AsStudied MaterialInGaAsStudied MaterialExpand
Research paperExperimental GrowthExperimental CharacterizationLow-threshold lasing of optically pumped micropillar lasers with Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectorsChing-Wen Shih, Imad Limame, Sebastian Krüger, Chirag C. Palekar et al.2023·10.1063/5.0143236·arXiv:2301.08026AbstractThe paper reports the design, realization, and characterization of optically pumped micropillar lasers using low-absorbing Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectors. InGaAs quantum dots are embedded in a GaAs cavity as the active medium. The work shows that the modified DBR design opens an optical pumping window from 700 nm to 820 nm, improves pump conversion efficiency, and reduces lasing threshold by more than an order of magnitude when switching the pump wavelength from 671 nm to 708 nm.Read more
Fabricated micropillar laser with modified Al0.2Ga0.8As/Al0.9Ga0.1As DBRs and an embedded InGaAs quantum-dot active region in a GaAs lambda cavity.2 preparations2 characterizations8 properties2 figuresExperimentalInGaAsStudied MaterialGaAsStudied MaterialAl0.2Ga0.8AsStudied MaterialAl0.9Ga0.1AsStudied MaterialGaAsSubstrate / DielectricExpand
Conventional micropillar cavity design used for transfer-matrix comparison against the modified DBR design.No measurements recordedSimulatedAlGaAs/GaAs distributed Bragg reflectorStudied MaterialGaAsStudied MaterialAl0.2Ga0.8AsStudied MaterialAl0.9Ga0.1AsStudied MaterialInGaAsStudied MaterialExpand