Quantum dot micropillar lasers

S. Reitzenstein; C. Kistner; S. Münch; T. Heindel; C. Schneider; M. Strauß; A. Rahimi-Iman; K. Morgener; S. Höfling; M. Kamp; A. Forchel

doi:10.1117/12.855654

2 December 2009 Quantum dot micropillar lasers

S. Reitzenstein, C. Kistner, S. Münch, T. Heindel, C. Schneider, M. Strauß, A. Rahimi-Iman, K. Morgener, S. Höfling, M. Kamp, A. Forchel

Author Affiliations +

Proceedings Volume 7631, Optoelectronic Materials and Devices IV; 76311J (2009) https://doi.org/10.1117/12.855654
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

Abstract

We report on laser emission from high quality quantum dot micropillar cavities. In these structures cavity quantum electrodynamics (cQED) effects are exploited to realize high efficient, low threshold lasing. We demonstrate that cQED effects allow for the observation of low threshold laser emission from a low number of InGaAs quantum dots embedded in optically and electrically pumped high-Q micropillar laser structures. For instance, lasing with threshold currents as low as 4 μA (160 A/cm²) is observed for electrically pumped microlasers at cryogenic temperatures. Moreover, single quantum dot controlled lasing effects are achieved in optically pumped micropillar lasers with particular high quality factors.

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S. Reitzenstein, C. Kistner, S. Münch, T. Heindel, C. Schneider, M. Strauß, A. Rahimi-Iman, K. Morgener, S. Höfling, M. Kamp, and A. Forchel "Quantum dot micropillar lasers", Proc. SPIE 7631, Optoelectronic Materials and Devices IV, 76311J (2 December 2009); https://doi.org/10.1117/12.855654

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