Waveguide Nanowire Superconducting Single-Photon Detectors Fabricated on GaAs and the Study of Their Optical Properties

TitleWaveguide Nanowire Superconducting Single-Photon Detectors Fabricated on GaAs and the Study of Their Optical Properties
Publication TypeJournal Article
Year of Publication2015
AuthorsD. Sahin, A. Gaggero, J.W Weber, I. Agafonov, M.A Verheijen, F. Mattioli, J. Beetz, M. Kamp, S. Hofling, M.CM van de Sanden, R. Leoni, A. Fiore
JournalSelected Topics in Quantum Electronics, IEEE Journal of
Date PublishedMarch
KeywordsDetectors, GaAs, gallium arsenide, III-V semiconductors, infrared detectors, integrated autocorrelators, integrated optics, integrated single-photon, integration density, linear optical circuits, monolithic integration, nanophotonics, nanowires, NbN, NbN films, NbN thin films, niobium compounds, on-chip single-photon detection, optical correlation, optical couplers, Optical design, optical design techniques, optical fabrication, Optical films, optical materials, optical properties, optical waveguides, passive circuit elements, photon-number-resolving detectors, Photonics, quantum computing, quantum optics, quantum photonic chip, quantum photonic integrated circuits, quantum photonic integration, quantum simulation, semiconductor waveguides, single-photon detectors, single-photon sources, substrates, superconducting photodetectors, waveguide nanowire superconducting single-photon detectors

Quantum photonic integration is one of the leading approaches for enabling the implementation of quantum simulation and computing at the scale of tens to hundreds of photons. Quantum photonic integrated circuits require the monolithic integration of single-photon sources and passive circuit elements, such as waveguides and couplers, with single-photon detectors. A promising approach for on-chip single-photon detection is the use of superconducting nanowires on top of semiconductor waveguides. Here, we present state-of-the-art NbN films on GaAs for the realization of waveguide superconducting single-photon detectors, suitable for integration with sources and linear optical circuits. Based on the measured optical properties, we propose a new design which allows high absorptance for short nanowires in order to increase the integration density in a quantum photonic chip. Finally, we review recent results on integrated single-photon and photon-number-resolving detectors, and integrated autocorrelators.







Alternate TitleIEEE J. Sel. Top. Quant. Electron.

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