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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Telecom-band–integrated multimode photonic quantum memory
Xueying Zhang,Bin Zhang,Shihai Wei,Hao Li,Jin-Yun Liao,Cheng Li,Guang-Wei Deng,You Wang,Lixing You,Bo Jing,Feng Chen,Guang-Can Guo,Qiang Zhou +12 more
TL;DR: In this paper , a fiber-integrated multimode quantum storage of a single photon at the telecom band on a laser-written chip is presented. But the storage device is a fiberpigtailed Er3+:LiNbO3 waveguide and allows a storage of up to 330 temporal modes of heralded single photon with 4GHz-wide bandwidth at 1532 nm and a 167-fold increasing of coincidence detection rate with respect to single mode.
Journal ArticleDOI
Certified random-number generation from quantum steering
TL;DR: In this paper , a quantum steering-based generator of public or private randomness is proposed, which operates in the quantum steering scenario where one can certify randomness in a one-sided device independent framework.
Proceedings ArticleDOI
High Resolution Mid-Infrared Range Determination through Photon Counting
Max Widarsson,Markus Henriksson,Patrick Mutter,Carlota Canalias,Valdas Pasiskevicius,Fredrik Laurell +5 more
TL;DR: In this article, an up-conversion of 2.4 pm pulses to 737 pm was performed which allowed for range determination measurements with conventional Si-based detectors, achieving temporal resolution of 42 ps and distinguishability between targets separated by few millimeters.
Proceedings ArticleDOI
Polarization-insensitive superconducting nanowire single-photon detectors
TL;DR: In this article, MoSi superconducting nanowire single-photon detectors (SNPDs) with low polarization sensitivity over a 120 nm wavelength range, covering the standard fiber telecom wavelengths were presented.
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
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.