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
More filters
Journal ArticleDOI
Superconducting series nanowire detector counting up to twelve photons
Zili Zhou,S. Jahanmirinejad,Francesco Mattioli,Dondu Sahin,G. Frucci,Alessandro Gaggero,Roberto Leoni,Andrea Fiore +7 more
TL;DR: In this paper, a superconducting photon-number-resolving detector capable of resolving up to twelve photons at telecommunication wavelengths is presented. But the detector is based on a series array of twelve NbN nanowire elements, each connected in parallel with an integrated resistor.
Journal ArticleDOI
Superconducting microwire detectors based on WSi with single-photon sensitivity in the near-infrared
Jeff Chiles,Sonia Buckley,Adriana E. Lita,Varun B. Verma,J. P. Allmaras,Boris Korzh,M. D. Shaw,Jeffrey M. Shainline,R. P. Mirin,Sae Woo Nam +9 more
TL;DR: In this article, the fabrication and characterization of single-photon-sensitive WSi superconducting detectors with wire widths from 1μm to 3μm was reported, which achieved the saturated internal detection efficiency at a wavelength of 1.55μm and exhibit maximum count rates in excess of 105 s−1.
Journal ArticleDOI
Superconducting microwire detectors with single-photon sensitivity in the near-infrared
Jeff Chiles,Sonia Buckley,Adriana E. Lita,Varun B. Verma,Jason P. Allmaras,Boris Korzh,Matthew D. Shaw,Jeffrey M. Shainline,Richard P. Mirin,Sae Woo Nam +9 more
TL;DR: In this paper, the fabrication and characterization of single-photon-sensitive WSi superconducting detectors with wire widths from 1 µm to 3 µm was described.
Journal ArticleDOI
Fluorescence correlation spectroscopy with visible-wavelength superconducting nanowire single-photon detector.
Taro Yamashita,Dengkuan Liu,Shigehito Miki,Johtaro Yamamoto,Tokuko Haraguchi,Masataka Kinjo,Yasushi Hiraoka,Zhen Wang,Hirotaka Terai +8 more
TL;DR: It is demonstrated that autocorrelation functions obtained by the SSPDs showed an after-pulse-free curve in the short correlation time region of sub microseconds where the afterpulse effect was dominant using the APD.
Journal ArticleDOI
Design of broadband high-efficiency superconducting-nanowire single photon detectors
Luca Redaelli,Gabriele Bulgarini,Sergiy M. Dobrovolskiy,Sander N. Dorenbos,Val Zwiller,Eva Monroy,Jean-Michel Gérard +6 more
TL;DR: In this article, the authors proposed a waveguide-coupled detector for superconducting-nanowire single-photon detectors, which achieved an overall system detection efficiency of 85% at 1.31 µm.
References
More filters
Journal ArticleDOI
Quantum Computing
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.