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	Author	Smirnov, K.; Korneev, A.; Minaeva, O.; Divochiy, A.; Tarkhov, M.; Ryabchun, S.; Seleznev, V.; Kaurova, N.; Voronov, B.; Gol'tsman, G.; Polonsky, S.
	Title	Ultrathin NbN film superconducting single-photon detector array			Type	Conference Article
	Year	2007	Publication	J. Phys.: Conf. Ser.	Abbreviated Journal	J. Phys.: Conf. Ser.
	Volume	61	Issue		Pages	1081-1085
	Keywords	SSPD array
	Abstract	We report on the fabrication process of the 2 × 2 superconducting single-photon detector (SSPD) array. The SSPD array is made from ultrathin NbN film and is operated at liquid helium temperatures. Each detector is a nanowire-based structure patterned by electron beam lithography process. The advances in fabrication technology allowed us to produce highly uniform strips and preserve superconducting properties of the unpatterned film. SSPD exhibit up to 30% quantum efficiency in near infrared and up to 1% at 5-μm wavelength. Due to 120 MHz counting rate and 18 ps jitter, the time-domain multiplexing read-out is proposed for large scale SSPD arrays. Single-pixel SSPD has already found a practical application in non-invasive testing of semiconductor very-large scale integrated circuits. The SSPD significantly outperformed traditional single-photon counting avalanche diodes.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1742-6588	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number				Serial	408
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	Author	Heeres, R.W.; Dorenbos, S.N.; Koene, B.; Solomon, G.S.; Kouwenhoven, L.P.; Zwiller, V.
	Title	On-Chip Single Plasmon Detection			Type	Journal Article
	Year	2010	Publication	Nano Letters	Abbreviated Journal	Nano Lett.
	Volume	10	Issue		Pages	661-664
	Keywords	optical antennas; SSPD; Single surface plasmons; superconducting detectors; semiconductor quantum dots; nanophotonics
	Abstract	Surface plasmon polaritons (plasmons) have the potential to interface electronic and optical devices. They could prove extremely useful for integrated quantum information processing. Here we demonstrate on-chip electrical detection of single plasmons propagating along gold waveguides. The plasmons are excited using the single-photon emission of an optically emitting quantum dot. After propagating for several micrometers, the plasmons are coupled to a superconducting detector in the near-field. Correlation measurements prove that single plasmons are being detected.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	RPLAB @ akorneev @			Serial	620
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	Author	Verevkin, A.; Slysz, W.; Pearlman, A.; Zhang, J.; Sobolewski, R.; Okunev, O.; Korneev, A.; Kouminov, P.; Smirnov, K.; Chulkova, G.; Gol’tsman, G. N.; Currie, M.
	Title	Real-time GHz-rate counting of infrared photons using nanostructured NbN superconducting detectors			Type	Conference Article
	Year	2003	Publication	CLEO/QELS	Abbreviated Journal	CLEO/QELS
	Volume		Issue		Pages	CThM8
	Keywords	NbN SSPD; SNSPD; Infrared; Quantum detectors; Detectors; Photon counting; Quantum communications; Quantum cryptography; Single photon detectors; Superconductors
	Abstract	We demonstrate that our ultrathin, nanometer-width NbN superconducting single-photon detectors are capable of above 1-GHz-frequency, real-time counting of near-infrared photons. The measured system jitter of the detector is below 15 ps.
	Address
	Corporate Author				Thesis
	Publisher	Optical Society of America	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference	Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference
	Notes				Approved	no
	Call Number				Serial	1517
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	Author	Минаева, Ольга Вячеславовна
	Title	Быстродействующий однофотонный детектор на основе тонкой сверхпроводниковой пленки NbN			Type	Manuscript
	Year	2009	Publication	М. МПГУ	Abbreviated Journal
	Volume		Issue		Pages
	Keywords	SSPD
	Abstract
	Address
	Corporate Author				Thesis	Ph.D. thesis
	Publisher		Place of Publication		Editor
	Language	russian	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number				Serial	585
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	Author	Verevkin, A.; Williams, C.; Gol’tsman, G. N.; Sobolewski, R.; Gilbert, G.
	Title	Single-photon superconducting detectors for practical high-speed quantum cryptography			Type	Miscellaneous
	Year	2001	Publication	OFCC/ICQI	Abbreviated Journal	OFCC/ICQI
	Volume		Issue		Pages	Pa3
	Keywords	NbN SSPD, SNSPD, QKD, quantum cryptography
	Abstract	We have developed an ultrafast superconducting single-photon detector with negligible dark counting rate. The detector is based on an ultrathin, submicron-wide NbN meander-type stripe and can detect individual photons in the visible to near-infrared wavelength range at a rate of at least 10 Gb/s. The above counting rate allows us to implement the NbN device to unconditionally secret quantum key distRochester, New Yorkribution in a practical, high-speed system using real-time Vernam enciphering.
	Address	Rochester, New York
	Corporate Author				Thesis
	Publisher	Optical Society of America	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference	Optical Fiber Communication Conference and International Conference on Quantum Information
	Notes	-- from poster session.			Approved	no
	Call Number				Serial	1544
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	Author	Takesue, Hiroki; Nam, Sae Woo; Zhang, Qiang; Hadfield, Robert H.; Honjo, Toshimori; Tamaki, Kiyoshi; Yamamoto, Yoshihisa
	Title	Quantum key distribution over a 40-dB channel loss using superconducting single-photon detectors			Type	Journal Article
	Year	2007	Publication	Nature Photonics	Abbreviated Journal	Nat. Photon.
	Volume	1	Issue		Pages	343-348
	Keywords	quantum cryptography, SSPD, QKD, DSP
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	RPLAB @ akorneev @			Serial	609
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	Author	Stevens, M.; Hadfield, R.; Schwall, R.; Nam, S.W.; Mirin, R.; Gupta, J.
	Title	Fast lifetime measurements of infrared emitters using a low-jitter superconduct- ing single-photon detector			Type	Journal Article
	Year	2006	Publication	Applied Physics Letters	Abbreviated Journal	Appl. Phys. Lett.
	Volume	89	Issue		Pages	031109
	Keywords	SSPD, jitter, QD, QW
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	RPLAB @ akorneev @			Serial	611
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	Author	Korneev, Alexander; Korneeva, Yulia; Florya, Irina; Elezov, Michael; Manova, Nadezhda; Tarkhov, Michael; An, Pavel; Kardakova, Anna; Isupova, Anastasiya; Chulkova, Galina; Voronov, Boris
	Title	Recent advances in superconducting NbN single-photon detector development			Type	Conference Article
	Year	2011	Publication	Proc. SPIE	Abbreviated Journal	Proc. SPIE
	Volume	8072	Issue		Pages	807202 (1 to 10)
	Keywords	SSPD
	Abstract	Superconducting single-photon detector (SSPD) is a planar nanostructure patterned from 4-nm-thick NbN film deposited on sapphire substrate. The sensitive element of the SSPD is 100-nm-wide NbN strip. The device is operated at liquid helium temperature. Absorption of a photon leads to a local suppression of superconductivity producing subnanosecond-long voltage pulse. In infrared (at 1550 nm and longer wavelengths) SSPD outperforms avalanche photodiodes in terms of detection efficiency (DE), dark counts rate, maximum counting rate and timing jitter. Efficient single-mode fibre coupling of the SSPD enabled its usage in many applications ranging from single-photon sources research to quantum cryptography. Recently we managed to improve the SSPD performance and measured 25% detection efficiency at 1550 nm wavelength and dark counts rate of 10 s-1. We also improved photon-number resolving SSPD (PNR-SSPD) which realizes a spatial multiplexing of incident photons enabling resolving of up to 4 simultaneously absorbed photons. Another improvement is the increase of the photon absorption using a λ/4 microcavity integrated with the SSPD. And finally in our strive to increase the DE at longer wavelengths we fabricated SSPD with the strip almost twice narrower compared to the standard 100 nm and demonstrated that in middle infrared (about 3 μm wavelength) these devices have DE several times higher compared to the traditional SSPDs.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	RPLAB @ gujma @			Serial	663
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	Author	Driessen, Eduard Frans Clemens
	Title	Coupling light to periodic nanostructures			Type	Journal Article
	Year	2009	Publication	Faculty of Science, Leiden University	Abbreviated Journal	Fac. Scien., Leiden Un.
	Volume		Issue		Pages	144
	Keywords	SSPD
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	Issue Date: 2009-09-24			Approved	no
	Call Number	RPLAB @ gujma @			Serial	675
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	Author	Engel, Andreas; Aeschbacher, Adrian; Inderbitzin, Kevin; Schilling, Andreas; Il'in, Konstantin; Hofherr, Matthias; Siegel, Michael; Semenov, Alexei; Hübers, Heinz-Wilhelm
	Title	Tantalum nitride superconducting single-photon detectors with low cut-off energy			Type	Journal Article
	Year	2011	Publication	arXiv	Abbreviated Journal	arXiv
	Volume		Issue		Pages	9
	Keywords	SSPD
	Abstract	Materials with a small superconducting energy gap favor a high detection efficiency of low-energy photons in superconducting nanowire single-photon detectors. We developed a TaN detector with smaller gap and lower density of states at the Fermi energy than in comparable NbN devices, while other relevant parameters remain essentially unchanged. This results in a reduction of the minimum photon energy required for direct detection to $\approx1/3$ as compared to NbN.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication	arXiv:1110.4576	Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	RPLAB @ gujma @			Serial	687
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	Author	Dorenbos, S. N.; Heeres, R.W.; Driessen, E.F.C; Zwiller, V.
	Title	Efficient and robust fiber coupling of superconducting single photon detectors			Type	Journal Article
	Year	2011	Publication	arXiv	Abbreviated Journal	arXiv
	Volume		Issue		Pages	6
	Keywords	SSPD
	Abstract	We applied a recently developed fiber coupling technique to superconducting single photon detectors (SSPDs). As the detector area of SSPDs has to be kept as small as possible, coupling to an optical fiber has been either inefficient or unreliable. Etching through the silicon substrate allows fabrication of a circularly shaped chip which self aligns to the core of a ferrule terminated fiber in a fiber sleeve. In situ alignment at cryogenic temperatures is unnecessary and no thermal stress during cooldown, causing misalignment, is induced. We measured the quantum efficiency of these devices with an attenuated tunable broadband source. The combination of a lithographically defined chip and high precision standard telecommunication components yields near unity coupling efficiency and a system detection efficiency of 34% at a wavelength of 1200 nm. This quantum efficiency measurement is confirmed by an absolute efficiency measurement using correlated photon pairs (with $\lambda$ = 1064 nm) produced by spontaneous parametric down-conversion. The efficiency obtained via this method agrees well with the efficiency measured with the attenuated tunable broadband source.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication	arXiv:1109.5809	Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	RPLAB @ gujma @			Serial	689
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	Author	Rath, P.; Vetter, A.; Kovalyuk, V.; Ferrari, S.; Kahl, O.; Nebel, C.; Goltsman, G. N.; Korneev, A.; Pernice, W. H. P.
	Title	Travelling-wave single-photon detectors integrated with diamond photonic circuits: operation at visible and telecom wavelengths with a timing jitter down to 23 ps			Type	Conference Article
	Year	2016	Publication	Integrated Optics: Devices, Mat. Technol. XX	Abbreviated Journal	Integrated Optics: Devices, Mat. Technol. XX
	Volume	9750	Issue		Pages	135-142
	Keywords	SSPD, Superconducting Nanowire Single-Photon Detector, SNSPD, Single Photon Detector, Diamond Photonics, Diamond Integrated Optics, Diamond Waveguides, Integrated Optics, Low Timing Jitter
	Abstract	We report on the design, fabrication and measurement of travelling-wave superconducting nanowire single-photon detectors (SNSPDs) integrated with polycrystalline diamond photonic circuits. We analyze their performance both in the near-infrared wavelength regime around 1600 nm and at 765 nm. Near-IR detection is important for compatibility with the telecommunication infrastructure, while operation in the visible wavelength range is relevant for compatibility with the emission line of silicon vacancy centers in diamond which can be used as efficient single-photon sources. Our detectors feature high critical currents (up to 31 μA) and high performance in terms of efficiency (up to 74% at 765 nm), noise-equivalent power (down to 4.4×10-19 W/Hz1/2 at 765 nm) and timing jitter (down to 23 ps).
	Address
	Corporate Author				Thesis
	Publisher	Spie	Place of Publication		Editor	Broquin, J.-E.; Conti, G.N.
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number				Serial	1210
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	Author	Чулкова, Г. М.; Семенов, А. В.; Корнеев, А. А.; Кардакова, А. И.; Аверьев, Н. В.; Ан, П. П.; Казаков, А. Ю.; Трифонов, А. В.
	Title	Спектральная чувствительность сверхпроводникового однофотонного детектора			Type	Journal Article
	Year	2011	Publication	Журнал радиоэлектроники	Abbreviated Journal	Ж. радиоэлектрон.
	Volume	11	Issue		Pages	5
	Keywords	SSPD; quantum efficiency; spectral sensitivity
	Abstract	We consider quantum efficiency dependence on photons' energy from hot spot model. Direction of quasiparticles diffusion drive across superconductive film. The maximal quantum efficiency is proportional to a probability of photon absorption. The spectral sensitivity of superconductive single photon detector does not have clearly expressed red limit. Changing regimes of work depends on a wavelength we can get high values of quantum efficiency in visible and infrared range which will be specified by the quality of fabrication of detectors and their consistency with the radiation. Key words: superconducting single-photon detector, SSPD, quantum efficiency, spectral sensitivity. В статье представлена зависимость квантовой эффективности от энергии фотона в рамках модели горячего пятна. Диффузия квазичастиц происходит в основном перпендикулярно направлению тока в областях с максимальной плотностью тока. Максимальная квантовая эффективность детектора пропорциональна вероятности поглощения фотона. Несмотря на квантовый характер работы сверхпроводникового однофотонного детектора, он не имеет четко выраженной красной границы. Изменяя режим работы в зависимости от длины волны можно в видимом и инфракрасном диапазонах получать высокие значения квантовой эффективности, которые будут определяться лишь качеством изготовления детекторов и степенью их согласования с излучением.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	RPLAB @ gujma @			Serial	844
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	Author	Pernice, W.; Schuck, C.; Minaeva, O.; Li, M.; Goltsman, G. N.; Sergienko, A. V.; Tang, H. X.
	Title	High speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits			Type	Miscellaneous
	Year	2012	Publication	arXiv	Abbreviated Journal	arXiv
	Volume	1108.5299	Issue		Pages	1-23
	Keywords	optical waveguides, waveguide SSPD, guantum photonics, jitter, detection efficiency
	Abstract	Ultrafast, high quantum efficiency single photon detectors are among the most sought-after elements in modern quantum optics and quantum communication. High photon detection efficiency is essential for scalable measurement-based quantum computation, quantum key distribution, and loophole-free Bell experiments. However, imperfect modal matching and finite photon absorption rates have usually limited the maximum attainable detection efficiency of single photon detectors. Here we demonstrate a superconducting nanowire detector atop nanophotonic waveguides which allows us to drastically increase the absorption length for incoming photons. When operating the detectors close to the critical current we achieve high on-chip single photon detection efficiency up to 91% at telecom wavelengths, with uncertainty dictated by the variation of the waveguide photon flux. We also observe remarkably low dark count rates without significant compromise of detection efficiency. Furthermore, our detectors are fully embedded in a scalable silicon photonic circuit and provide ultrashort timing jitter of 18ps. Exploiting this high temporal resolution we demonstrate ballistic photon transport in silicon ring resonators. The direct implementation of such a detector with high quantum efficiency, high detection speed and low jitter time on chip overcomes a major barrier in integrated quantum photonics.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number				Serial	845
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	Author	Sprengers, J.P.; Gaggero, A.; Sahin, D.; Nejad, S. Jahanmiri; Mattioli, F.; Leoni, R.; Beetz, J.; Lermer, M.; Kamp, M.; Höfling, S.; Sanjines, R.; Fiore A.
	Title	Waveguide single-photon detectors for integrated quantum photonic circuits			Type	Conference Article
	Year	2011	Publication	arXiv	Abbreviated Journal	arXiv
	Volume	1108.5107	Issue		Pages	1-11
	Keywords	optical waveguides, waveguide SSPD
	Abstract	The generation, manipulation and detection of quantum bits (qubits) encoded on single photons is at the heart of quantum communication and optical quantum information processing. The combination of single-photon sources, passive optical circuits and single-photon detectors enables quantum repeaters and qubit amplifiers, and also forms the basis of all-optical quantum gates and of linear-optics quantum computing. However, the monolithic integration of sources, waveguides and detectors on the same chip, as needed for scaling to meaningful number of qubits, is very challenging, and previous work on quantum photonic circuits has used external sources and detectors. Here we propose an approach to a fully-integrated quantum photonic circuit on a semiconductor chip, and demonstrate a key component of such circuit, a waveguide single-photon detector. Our detectors, based on superconducting nanowires on GaAs ridge waveguides, provide high efficiency (20%) at telecom wavelengths, high timing accuracy (60 ps), response time in the ns range, and are fully compatible with the integration of single-photon sources, passive networks and modulators.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number				Serial	846
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