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30 March 2021 Filter-free single-photon quantum-dot resonance fluorescence in an integrated cavity-waveguide device
Glenn S. Solomon, Tobias Huber, Marcelo Davanco, Markus Müller, Yichen Shuai, Olivier Gazzano
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Proceedings Volume 11699, Quantum Computing, Communication, and Simulation; 1169912 (2021) https://doi.org/10.1117/12.2586337
Event: SPIE OPTO, 2021, Online Only
Abstract
Semiconductor quantum dots are excellent emitters of single photons. Often, the same mode is used to resonantly excite a QD and to collect the emitted single-photons, requiring cross polarization to separate out scattered laser light. This reduces the source brightness to ≤50%, and potentially eliminates their use in some quantum applications. We demonstrate a resonant-excitation approach to creating single photons that is free of any filtering whatsoever. This integrated device allows us to resonantly excite single quantum-dot states in several cavities in the plane of the device using connected cavity-waveguides, while the cavity-enhanced single-photon fluorescence is directed vertically (off-chip) in a Gaussian mode.
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Glenn S. Solomon, Tobias Huber, Marcelo Davanco, Markus Müller, Yichen Shuai, and Olivier Gazzano "Filter-free single-photon quantum-dot resonance fluorescence in an integrated cavity-waveguide device", Proc. SPIE 11699, Quantum Computing, Communication, and Simulation, 1169912 (30 March 2021); https://doi.org/10.1117/12.2586337
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KEYWORDS
Quantum dots
Luminescence
Polarization
Quantum efficiency
Single photon
Optical filters
Photonics
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