In-plane emission of indistinguishable photons generated by an integrated quantum emitter

Journal Article · Mon Jun 02 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4881887· OSTI ID:22300073

Kalliakos, Sokratis; Bennett, Anthony J.; Ward, Martin B.; Ellis, David J. P.; Skiba-Szymanska, Joanna; Shields, Andrew J. ^[1]; Brody, Yarden; Schwagmann, Andre ^[1]; Farrer, Ian; Griffiths, Jonathan P.; Jones, Geb A. C.; Ritchie, David A. ^[2]

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1. Cambridge Research Laboratory, Toshiba Research Europe Limited, 208 Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom)
2. Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

We demonstrate the emission of indistinguishable photons along a semiconductor chip originating from carrier recombination in an InAs quantum dot. The emitter is integrated in the waveguiding region of a photonic crystal structure, allowing for on-chip light propagation. We perform a Hong-Ou-Mandel-type of experiment with photons collected from the exit of the waveguide, and we observe two-photon interference under continuous wave excitation. Our results pave the way for the integration of quantum emitters in advanced photonic quantum circuits.

• OSTI ID: 22300073
• Journal Information: Applied Physics Letters, Vol. 104, Issue 22; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CARRIERS
CRYSTAL STRUCTURE
EMISSION
EXCITATION
INDIUM ARSENIDES
INTERFERENCE
LIGHT TRANSMISSION
PHOTONS
QUANTUM DOTS
RECOMBINATION
SEMICONDUCTOR MATERIALS
WAVEGUIDES