Detecting single infrared photons with 93% system efficiency
Francesco Marsili,Varun B. Verma,Jeffrey A. Stern,Sean D. Harrington,Adriana E. Lita,Thomas Gerrits,Igor Vayshenker,Burm Baek,M. D. Shaw,Richard P. Mirin,Sae Woo Nam +10 more
TLDR
In this article, a fiber-coupled single-photon detection system using amorphous tungsten silicide superconducting nanowire detectors was developed, and the system detection efficiency was higher than 90% in the wavelength range between 1520 nm and 1610 nm.Abstract:
Researchers develop a fiber-coupled single-photon-detection system using amorphous tungsten silicide superconducting nanowire single-photon detectors. The system detection efficiency is higher than 90% in the wavelength range between 1520 nm and 1610 nm. The device dark-count rate, timing jitter and reset time are 1 cps, 150 ps and 40 ns, respectively.read more
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Quantum teleportation over 100 km of fiber using highly-efficient superconducting nanowire single photon detectors
Hiroki Takesue,Shellee D. Dyer,Martin J. Stevens,Varun B. Verma,Richard P. Mirin,Sae Woo Nam +5 more
TL;DR: In this paper, the authors reported efficient quantum teleportation over optical fiber using four high-detection efficiency superconducting nanowire super-conducting single-photon detectors (SNSPD) based on MoSi.
Journal ArticleDOI
Low-Filling-Factor Superconducting Single Photon Detector with High System Detection Efficiency
TL;DR: In this paper, a superconducting nanowire single-photon detectors (SSPDs) with low filling factor were designed, fabricated, and measured to achieve high system detection efficiency (SDE) and counting rate simultaneously.
Journal ArticleDOI
UV superconducting nanowire single-photon detectors with high efficiency, low noise, and 4 K operating temperature.
Emma E. Wollman,Varun B. Verma,Andrew D. Beyer,Ryan M. Briggs,Boris Korzh,Jason P. Allmaras,Francesco Marsili,Adriana E. Lita,R. P. Mirin,Sae Woo Nam,M. D. Shaw +10 more
TL;DR: The design, fabrication, and characterization of UV SNSPDs operating at wavelengths between 250 and 370 nm are described, which make them ideal for applications in trapped-ion quantum information processing, lidar studies of the upper atmosphere, UV fluorescent-lifetime imaging microscopy, and photon-starved UV astronomy.
Journal ArticleDOI
All-silicon light-emitting diodes waveguide-integrated with superconducting single-photon detectors
Sonia Buckley,Jeff Chiles,Adam N. McCaughan,Galan Moody,Kevin L. Silverman,Martin J. Stevens,Richard P. Mirin,Sae Woo Nam,Jeffrey M. Shainline +8 more
TL;DR: In this article, a waveguide-coupled Si light-emitting diodes (LEDs) operating at 1.22μm were demonstrated with superconducting nanowire single-photon detectors.
Patent
Superconducting single photon detector
TL;DR: In this article, a traveling wave design comprising a waveguide layer and a superconducting nanowire atop of the waveguide was proposed for high efficiency and low noise detection of single photons within the visible and infrared spectrum.
References
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TL;DR: In this article, a supercurrent-assisted hotspot-formation mechanism for ultrafast detection and counting of visible and infrared photons is presented, where a photon-induced hotspot leads to a temporary formation of a resistive barrier across the superconducting sensor strip and results in an easily measurable voltage pulse.
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Quantum Communication
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TL;DR: The current state of research and future directions in quantum key distribution and quantum networks are reviewed in this paper, with a special emphasis on quantum key distributions and quantum key sharing in quantum networks.
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TL;DR: The current status of single-photon-source and single-Photon-detector technologies operating at wavelengths from the ultraviolet to the infrared are reviewed and applications of these technologies to quantum communication are discussed.