期刊
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
卷 248, 期 4, 页码 867-871出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201000781
关键词
Hong-Ou-Mandel effect; indistinguishability; microcavity; Purcell effect; quantum dots
资金
- Carl Zeiss Stiftung
- Max Planck Research School IMPRS-AM
- DFG
We investigated the indistinguishability of photons emitted by single self-assembled (In, Ga) As/GaAs quantum dots (QDs) coupled to the fundamental mode (FM) of a pillar microcavity. By systematic pre-characterization, optimum conditions with respect to fast radiative decay (Purcell enhancement), long coherence time, and close to background-free single-photon emission have been derived. For different spectral detunings between QD and FM emission, Hong-Ou-Mandel-type (HOM) two-photon interference has been measured as a function of temporal photon wavepacket overlap. Detailed analysis of our data (under consideration of setup limitations) anticipates the generation of highly indistinguishable photons with up to V-HOM-0.82 visibility. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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