Phys. Rev. B 81, 035302 (2010) [14 pages]Two-photon lasing by a single quantum dot in a high-Q microcavityReceived 10 July 2009; revised 13 October 2009; published 5 January 2010 We investigate theoretically two-photon processes in a microcavity containing one quantum dot in the strong-coupling regime. The cavity mode can be tuned to resonantly drive the two-photon transition between the ground and the biexciton states while the exciton states are far-off resonance due to the biexciton binding energy. We study the steady state of the quantum dot and cavity field in presence of a continuous incoherent pumping. We identify the regime where the system acts as two-photon emitter and discuss the feasibility and performance of realistic single quantum-dot devices for two-photon lasing. © 2010 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.81.035302
DOI:
10.1103/PhysRevB.81.035302
PACS:
78.67.Hc, 42.55.Sa, 42.50.Pq, 42.55.Ah
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