Single quantum dot controlled lasing effects in high-Q micropillar cavities | Zendy

Stephan Reitzenstein | Zendy; C. Böckler | Zendy; A. V. Bazhenov̇ | Zendy; А. В. Горбунов | Zendy; Andreas Löffler | Zendy; M. Kamp | Zendy; V. D. Kulakovskiĭ | Zendy; A. Forchel | Zendy

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Single quantum dot controlled lasing effects in high-Q micropillar cavities

Author(s) -

Stephan Reitzenstein,

C. Böckler,

A. V. Bazhenov̇,

А. В. Горбунов,

Andreas Löffler,

M. Kamp,

V. D. Kulakovskiĭ,

A. Forchel

Publication year - 2008

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.004848

Subject(s) - lasing threshold , quantum dot , resonance (particle physics) , laser , quantum dot laser , exciton , optics , excitation , photon , physics , optoelectronics , materials science , atomic physics , quantum well , condensed matter physics , quantum mechanics

Lasing effects based on individual quantum dots have been investigated in optically pumped high-Q micropillar cavities. We demonstrate a lowering of the threshold pump power from a off-resonance value of 37 microW to 18 microW when an individual quantum dot exciton is on-resonance with the cavity mode. Photon correlation studies below and above the laser threshold confirm the single dot influence. At resonance we observe antibunching with g((2))(0) = 0.36 at low excitation, which increases to 1 at about 1.5 times the threshold. In the off-resonant case, g((2))(0) is about 1 below and above threshold.

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