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
Citations
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A versatile, inexpensive integrated photonics platform
Jeffrey M. Shainline,Sonia Buckley,Nima Nader,Cale M. Gentry,Kevin C. Cossel,Milos A. Popovic,Nathan R. Newbury,Sae Woo Nam,Richard P. Mirin +8 more
TL;DR: In this paper, the authors present an approach to fabrication and packaging of integrated photonic devices that utilizes waveguide and detector layers deposited at near-ambient temperature, where all lithography is performed with a 365 nm i-line stepper, facilitating low cost and high scalability.
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SuperMind: a survey of the potential of superconducting electronics for neuromorphic computing
Michael Schneider,Emily Toomey,Graham E. Rowlands,Jeffrey M. Shainline,Paul Kenton Tschirhart,Kenneth Segall +5 more
TL;DR: This work reviews the work that has been done on biologically inspired superconductive devices, circuits, and architectures and discusses the scaling potential of these demonstrations.
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Design of a polarization-insensitive superconducting nanowire single photon detector with high detection efficiency
TL;DR: This work provides the first demonstration of the possibility of designing a polarization-insensitive and highly efficient SNSPD without performing device symmetry improvements and increases the absorption of SNSPDs under transverse magnetic illumination.
Journal ArticleDOI
1550 nm InGaAs/InAlAs single photon avalanche diode at room temperature
TL;DR: The single photon detection efficiency achieved in gated mode was 21 and 10% at 260 and 290 K, respectively, however the dark count rates were high due to excessive band-to-band tunneling current in the InAlAs avalanche region.
Journal ArticleDOI
A quantum dot as a source of time-bin entangled multi-photon states
J. P. Lee,J. P. Lee,B. Villa,B. Villa,Anthony J. Bennett,Richard Mark Stevenson,D. J. P. Ellis,Ian Farrer,David A. Ritchie,Andrew J. Shields +9 more
TL;DR: In this article, an alternative scheme based on a semiconductor quantum dot (QD) embedded in an optical microcavity in a magnetic field was proposed, where a single charge carrier trapped in the dot has an associated spin that can be controlled by ultrashort optical pulses.
References
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Thaddeus D. Ladd,Fedor Jelezko,Raymond Laflamme,Yasunobu Nakamura,Christopher Monroe,Jeremy L. O'Brien +5 more
TL;DR: A number of physical systems, spanning much of modern physics, are being developed for this task, ranging from single particles of light to superconducting circuits, and it is not yet clear which, if any, will ultimately prove successful as discussed by the authors.
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Picosecond superconducting single-photon optical detector
Gregory Goltsman,O. Okunev,G. M. Chulkova,A. Lipatov,A. D. Semenov,Konstantin Smirnov,B. M. Voronov,A. Dzardanov,C. Williams,Roman Sobolewski +9 more
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
Nicolas Gisin,Rob Thew +1 more
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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Invited review article: Single-photon sources and detectors
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.