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Marsili, F.; Verma, V. B.; Stern, J. A.; Harrington, S.; Lita, A. E.; Gerrits, T.; Vayshenker, I.; Baek, B.; Shaw, M. D.; Mirin, R. P.; Nam, S. W. |
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Detecting single infrared photons with 93% system efficiency |
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2013 |
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Nat. Photon. |
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7 |
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3 |
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210-214 |
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SSPD quantum efficiency |
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Single-photon detectors1 at near-infrared wavelengths with high system detection efficiency (>90%), low dark count rate (<1 c.p.s.), low timing jitter (<100 ps) and short reset time (<100 ns) would enable landmark experiments in a variety of fields2, 3, 4, 5, 6. Although some of the existing approaches to single-photon detection fulfil one or two of the above specifications1, to date, no detector has met all of the specifications simultaneously. Here, we report on a fibre-coupled single-photon detection system that uses superconducting nanowire single-photon detectors7 and closely approaches the ideal performance of single-photon detectors. Our detector system has a system detection efficiency (including optical coupling losses) greater than 90% in the wavelength range λ = 1,520–1,610 nm, with a device dark count rate (measured with the device shielded from any background radiation) of ~1 c.p.s., timing jitter of ~150 ps full-width at half-maximum (FWHM) and reset time of 40 ns. |
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1056 |
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Kitaygorsky, J.; Zhang, J.; Verevkin, A.; Sergeev, A.; Korneev, A.; Matvienko, V.; Kouminov, P.; Smirnov, K.; Voronov, B.; Gol'tsman, G.; Sobolewski, R. |
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Title |
Origin of dark counts in nanostructured NbN single-photon detectors |
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2005 |
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IEEE Trans. Appl. Supercond. |
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IEEE Trans. Appl. Supercond. |
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15 |
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2 |
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545-548 |
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SSPD dark counts, SNSPD, dark counts rate |
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We present our study of dark counts in ultrathin (3.5 to 10 nm thick), narrow (120 to 170 nm wide) NbN superconducting stripes of different lengths. In experiments, where the stripe was completely isolated from the outside world and kept at temperature below the critical temperature Tc, we detected subnanosecond electrical pulses associated with the spontaneous appearance of the temporal resistive state. The resistive state manifested itself as generation of phase-slip centers (PSCs) in our two-dimensional superconducting stripes. Our analysis shows that not far from Tc, PSCs have a thermally activated nature. At lowest temperatures, far below Tc, they are created by quantum fluctuations. |
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1057 |
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Zhang, Jin; Slysz, W.; Verevkin, A.; Okunev, O.; Chulkova, G.; Korneev, A.; Lipatov, A.; Gol'tsman, G. N.; Sobolewski, R. |
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Response time characterization of NbN superconducting single-photon detectors |
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2003 |
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IEEE Trans. Appl. Supercond. |
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13 |
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2 |
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180-183 |
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SSPD jitter, SNSPD jitter |
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We report our time-resolved measurements of NbN-based superconducting single-photon detectors. The structures are meander-type, 10-nm thick, and 200-nm wide stripes and were operated at 4.2 K. We have shown that the NbN devices can count single-photon pulses with below 100-ps time resolution. The response signal pulse width was about 150 ps, and the system jitter was measured to be 35 ps. |
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IEEE |
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1058 |
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Тархов, Михаил Александрович |
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Разработка сверхпроводниковых однофотонных детекторов с повышенной спектральной чувствительностью и быстродействием |
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2016 |
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М. НИЦ “Курчатовский институт” |
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1-103 |
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SSPD |
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123182, Россия, Москва, пл. Академика И. В. Курчатова, 1 |
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Ph.D. thesis |
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НИЦ "Курчатовский институт" |
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1064 |
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Тархов, Михаил Александрович |
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Разработка сверхпроводниковых однофотонных детекторов с повышенной спектральной чувствительностью и быстродействием. Автореферат |
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2016 |
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М. НИЦ “Курчатовский институт” |
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1-30 |
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SSPD |
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1065 |
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