Awaveguide-coupled on-chip single-photon source

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Journal titlePhysical Review X
Pages17; # of pages: 7
SubjectAutocorrelation measurement; Coupling efficiency; Emission rates; GaAs; InGaAs quantum dots; On chips; Optical modes; Photonic crystal waveguide; Self-assembled; Single mode; Single photon generation; Single-photon source; Time-resolved photoluminescence; Waveguide mode; Confocal microscopy; Optical waveguides; Waveguides; Particle beams
AbstractWe investigate single-photon generation from individual self-assembled InGaAs quantum dots coupled to the guided optical mode of a GaAs photonic crystal waveguide. By performing confocal microscopy measurements on single dots positioned within the waveguide, we locate their positions with a precision better than 0:5 μm. Time-resolved photoluminescence and photon autocorrelation measurements are used to prove the single-photon character of the emission into the propagating waveguide mode. The results obtained demonstrate that such nanostructures can be used to realize an on-chip, highly directed singlephoton source with single-mode spontaneous emission coupling efficiencies in excess of βΓ ~ 85% and the potential to reach maximum emission rates >1 GHz.
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AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Microstructural Sciences (IMS-ISM)
Peer reviewedYes
NPARC number21269195
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Record identifier5d4f9548-22f3-48a7-8e38-a0de539c3b77
Record created2013-12-12
Record modified2016-05-09
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