Lasing in high-Q quantum-dot micropillar cavities
2006; American Institute of Physics; Volume: 89; Issue: 5 Linguagem: Inglês
10.1063/1.2266231
ISSN1520-8842
AutoresStephan Reitzenstein, A. V. Bazhenov̇, А. В. Горбунов, C. Hofmann, S. Münch, Andreas Löffler, M. Kamp, Johann Peter Reithmaier, V. D. Kulakovskiĭ, A. Forchel,
Tópico(s)Semiconductor Lasers and Optical Devices
ResumoWe present lasing in optically pumped high-Q micropillar cavity lasers with low thresholds and high β factors. The micropillar cavities with diameters between 1.0 and 4.0μm contain a single layer of low density In0.3Ga0.7As quantum dots as active region. Cavity Q factors of up to 23.000 for 4.0μm micropillar cavities and lasing based on less than 70 quantum dots is demonstrated.
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