Strong coupling in a quantum dot micropillar system under electrical current injection

Kistner, C.; Morgener, K.; Reitzenstein, S.; Schneider, C.; Höfling, S.; Worschech, L.; Forchel, A.; Yao, P.; Hughes, S.
May 2010
Applied Physics Letters;5/31/2010, Vol. 96 Issue 22, p221102
Academic Journal
Integrating In0.3Ga0.7As quantum dots (QDs) featuring a high oscillator strength into a high quality electrically contacted micropillar cavity enabled us to realize strong coupling under electrical carrier injection. In the micropillar cavity with a quality factor of 10 000 and a diameter of 1.9 μm, a vacuum Rabi splitting of 108 μeV was observed when an electrically excited QD exciton was tuned through resonance with the fundamental cavity mode by varying the temperature.


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