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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 |
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Journal Article |
Year |
2007 |
Publication |
Nature Photonics |
Abbreviated Journal |
Nat. Photon. |
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1 |
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343-348 |
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quantum cryptography, SSPD, QKD, DSP |
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RPLAB @ akorneev @ |
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609 |
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Stucki, D.; Walenta, N.; Vannel, F.; Thew, R.T.; Gisin, N.; Zbinden, H.; Gray, S.; Towery, C. R.; Ten, S. |
Title |
High rate long-distance quantum key distribution over 250 km of ultra low loss fibres |
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Journal Article |
Year |
2009 |
Publication |
New J. Phys. |
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Volume |
11 |
Issue |
7 |
Pages |
075003 |
Keywords |
SSPD, quantum cryptography, QKD, COW |
Abstract |
We present a fully automated quantum key distribution prototype running at 625 MHz clock rate. Taking advantage of ultra low loss fibres and low-noise superconducting detectors, we can distribute 6,000 secret bits per second over 100 km and 15 bits per second over 250km. |
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RPLAB @ akorneev @ |
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610 |
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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 |
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Journal Article |
Year |
2006 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
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89 |
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031109 |
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SSPD, jitter, QD, QW |
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RPLAB @ akorneev @ |
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611 |
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Stevens, M.; Hadfeld, R.; Schwall, R.; Nam, S.W.; and Mirin, R. |
Title |
Quantum dot single photon sources studied with superconducting single photon detectors |
Type |
Journal Article |
Year |
2006 |
Publication |
IEEE J. Sel. Topics Quantum Electron. |
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Volume |
12 |
Issue |
6 |
Pages |
1255-1267 |
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SSPD, jitter, QD, QW |
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RPLAB @ akorneev @ |
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612 |
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Seki, T.; Shibata, H.; Takesue, H.; Tokura, Y.; Imoto, N. |
Title |
Comparison of timing jitter between NbN superconducting single-photon detector and avalanche photodiode |
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Journal Article |
Year |
2010 |
Publication |
Phys. C |
Abbreviated Journal |
Phys. C |
Volume |
470 |
Issue |
20 |
Pages |
1534-1537 |
Keywords |
SSPD; APD; jitter |
Abstract |
We report the pulse-to-pulse timing jitter measurement of a niobium nitride (NbN) superconducting single-photon detector (SSPD) and an InGaAs avalanche photodiode (APD) at 1550-nm wavelength. A direct comparison of their timing jitter was performed by using the same experimental configuration to measure both detectors. The measured jitter of the SSPD and the APD are 75 and 84 ps at full-width at half-maximum (FWHM), and 138 and 384 ps at full-width at tenth-maximum (FWTM), respectively. The jitter of the SSPD remains small at FWTM while that of APD is wide. We also estimated the transmission distances and secure key generation rates for fiber-based quantum key distribution (QKD) which uses these detectors. The estimated transmission distances of the APD are 86 km and 107 km with respect to 1 ns and 100 ps time windows, respectively, and those of the SSPD are 125 km and 172 km with respect to 1 ns and 100 ps time windows, respectively. This estimation indicates the SSPDЃfs advantages for QKD compared to the APD. |
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RPLAB @ akorneev @ |
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613 |
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Author |
Korneev, Alexander; Golt'sman, Gregory; Pernice, Wolfram |
Title |
Photonic integration meets single-photon detection |
Type |
Miscellaneous |
Year |
2015 |
Publication |
Laser Focus World |
Abbreviated Journal |
Laser Focus World |
Volume |
51 |
Issue |
5 |
Pages |
47-50 |
Keywords |
optical waveguide SSPD, SNSPD |
Abstract |
By embedding superconducting nanowire single-photon detectors (SNSPDs) in nanophotonic circuits, these waveguide-integrated detectors are a key building block for future on-chip quantum computing applications. |
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RPLAB @ akorneev @ |
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1126 |
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Korneev, A.; Korneeva, Y.; Manova, N.; Larionov, P.; Divochiy, A.; Semenov, A.; Chulkova, G.; Vachtomin, Y.; Smirnov, K.; Goltsman, G. |
Title |
Recent nanowire superconducting single-photon detector optimization for practical applications |
Type |
Journal Article |
Year |
2013 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
Volume |
23 |
Issue |
3 |
Pages |
2201204 (1 to 4) |
Keywords |
SSPD, SNSPD |
Abstract |
In this paper, we present our approaches to the development of fiber-coupled superconducting single photon detectors with enhanced photon absorption. For such devices we have measured detection efficiency in wavelength range from 500 to 2000 nm. The best fiber coupled devices exhibit detection efficiency of 44.5% at 1310 nm wavelength and 35.5% at 1550 nm at 10 dark counts per second. |
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RPLAB @ akorneev @ KorneevIEEE2013 |
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996 |
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Korneev, A. A.; Korneeva, Y. P.; Mikhailov, M. Yu.; Pershin, Y. P.; Semenov, A. V.; Vodolazov, D. Yu.; Divochiy, A. V.; Vakhtomin, Y. B.; Smirnov, K. V.; Sivakov, A. G.; Devizenko, A. Yu.; Goltsman, G. N. |
Title |
Characterization of MoSi superconducting single-photon detectors in the magnetic field |
Type |
Journal Article |
Year |
2015 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
Volume |
25 |
Issue |
3 |
Pages |
2200504 (1 to 4) |
Keywords |
SSPD, SNSPD |
Abstract |
We investigate the response mechanism of nanowire superconducting single-photon detectors (SSPDs) made of amorphous MoxSi1-x. We study the dependence of photon count and dark count rates on bias current in magnetic fields up to 113 mT at 1.7 K temperature. The observed behavior of photon counts is similar to the one recently observed in NbN SSPDs. Our results show that the detecting mechanism of relatively high-energy photons does not involve the vortex penetration from the edges of the film, and on the contrary, the detecting mechanism of low-energy photons probably involves the vortex penetration from the film edges. |
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RPLAB @ akorneev @ KorneevIEEE2015 |
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991 |
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Driessen, E. F. C.; Braakman, F. R.; Reiger, E. M.; Dorenbos, S. N.; Zwiller, V.; de Dood, M. J. A. |
Title |
Impedance model for the polarization-dependent optical absorption of superconducting single-photon detectors |
Type |
Journal Article |
Year |
2009 |
Publication |
Eur. Phys. J. Appl. Phys. |
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47 |
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Pages |
10701 |
Keywords |
SSPD, SNSPD |
Abstract |
We measured the single-photon detection efficiency of NbN superconducting single-photon detectors as a function of the polarization state of the incident light for different wavelengths in the range from 488 nm to 1550 nm. The polarization contrast varies from ~% at 488 nm to~0% at 1550 nm, in good agreement with numerical calculations. We use an optical-impedance model to describe the absorption for polarization parallel to the wires of the detector. For the extremely lossy NbN material, the absorption can be kept constant by keeping the product of layer thickness and filling factor constant. As a consequence, the maximum possible absorption is independent of filling factor. By illuminating the detector through the substrate, an absorption efficiency of ~0% can be reached for a detector on Si or GaAs, without the need for an optical cavity. |
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RPLAB @ alex_kazakov @ |
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1062 |
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Манова, Н.Н.; Корнеева, Ю.П.; Корнеев, А.А.; Слыш, В.; Воронов, Б.М.; Гольцман, Г.Н. |
Title |
Сверхпроводниковый NbN однофотонный детектор, интегрированный с четвертьволновым резонатором |
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Journal Article |
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2011 |
Publication |
Письма в Журнал технической физики |
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ПЖТФ |
Volume |
37 |
Issue |
10 |
Pages |
7 |
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SSPD |
Abstract |
Исследована спектральная зависимость квантовой эффективности сверхпроводниковых NbN однофотонных детекторов, интегрированных с оптическими четвертьволновыми резонаторами с использованием диэлектриков Si3N4, SiO2, SiO. |
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RPLAB @ gujma @ |
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637 |
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Korneeva, Y.; Florya, I.; Semenov, A.; Korneev, A.; Goltsman, G. |
Title |
New generation of nanowire NbN superconducting single-photon detector for mid-infrared |
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Journal Article |
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2011 |
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IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
Volume |
21 |
Issue |
3 |
Pages |
323-326 |
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SSPD |
Abstract |
We present a break-through approach to mid-infrared single-photon detection based on nanowire NbN superconducting single-photon detectors (SSPD). Although SSPD became a mature technology for telecom wavelengths (1.3-1.55 μm) its further expansion to mid-infrared wavelength was hampered by low sensitivity above 2 μm. We managed to overcome this limit by reducing the nanowire width to 50 nm, while retaining high superconducting properties and connecting the wires in parallel to produce a voltage response of sufficient magnitude. The new device exhibits 10 times better quantum efficiency at 3.5 μm wavelength than the “standard” SSPD. |
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RPLAB @ gujma @ |
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644 |
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Feautrier, P.; le Coarer, E.; Espiau de Lamaestre, R.; Cavalier, P.; Maingault, L.; Villégier, J-C.; Frey, L.; Claudon, J.; Bergeard, N.; Tarkhov, M.; Poizat, J-P. |
Title |
High-speed superconducting single photon detectors for innovative astronomical applications |
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Conference Article |
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2008 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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97 |
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1 |
Pages |
10 |
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SSPD |
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Superconducting Single Photon Detectors (SSPD) are now mature enough to provide extremely interesting detector performances in term of sensitivity, speed, and geometry in the visible and near infrared wavelengths. Taking advantage of recent results obtained in the Sinphonia project, the goal of our research is to demonstrate the feasibility of a new family of micro-spectrometers, called SWIFTS (Stationary Wave Integrated Fourier Transform Spectrometer), associated to an array of SSPD, the whole assembly being integrated on a monolithic sapphire substrate coupling the detectors array to a waveguide injecting the light. This unique association will create a major breakthrough in the domain of visible and infrared spectroscopy for all applications where the space and weight of the instrument is limited. SWIFTS is an innovative way to achieve very compact spectro-detectors using nano-detectors coupled to evanescent field of dielectric integrated optics. The system is sensitive to the interferogram inside the dielectric waveguide along the propagation path. Astronomical instruments will be the first application of such SSPD spectrometers. In this paper, we describes in details the fabrication process of our SSPD built at CEA/DRFMC using ultra-thin NbN epitaxial films deposited on different orientations of Sapphire substrates having state of the art superconducting characteristics. Electron beam lithography is routinely used for patterning the devices having line widths below 200 nm and down to 70 nm. An experimental set-up has been built and used to test these SSPD devices and evaluate their photon counting performances. Photon counting performances of our devices have been demonstrated with extremely low dark counts giving excellent signal to noise ratios. The extreme compactness of this concept is interesting for space spectroscopic applications. Some new astronomical applications of such concept are proposed in this paper. |
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RPLAB @ gujma @ |
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648 |
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Mohan, Nishant; Minaeva, Olga; Goltsman, Gregory N.; Saleh, Mohammed F.; Nasr, Magued B.; Sergienko, Alexander V.; Saleh, Bahaa E.; Teich, Malvin C. |
Title |
Ultrabroadband coherence-domain imaging using parametric downconversion and superconducting single-photon detectors at 1064 nm |
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Journal Article |
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2009 |
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Appl. Opt. |
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Appl. Opt. |
Volume |
48 |
Issue |
20 |
Pages |
4009–4017 |
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SSPD, SNSPD, SPAD |
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Coherence-domain imaging systems can be operated in a single-photon-counting mode, offering low detector noise; this in turn leads to increased sensitivity for weak light sources and weakly reflecting samples. We have demonstrated that excellent axial resolution can be obtained in a photon-counting coherence-domain imaging (CDI) system that uses light generated via spontaneous parametric downconversion (SPDC) in a chirped periodically poled stoichiometric lithium tantalate (chirped-PPSLT) structure, in conjunction with a niobium nitride superconducting single-photon detector (SSPD). The bandwidth of the light generated via SPDC, as well as the bandwidth over which the SSPD is sensitive, can extend over a wavelength region that stretches from 700 to 1500 nm. This ultrabroad wavelength band offers a near-ideal combination of deep penetration and ultrahigh axial resolution for the imaging of biological tissue. The generation of SPDC light of adjustable bandwidth in the vicinity of 1064 nm, via the use of chirped-PPSLT structures, had not been previously achieved. To demonstrate the usefulness of this technique, we construct images for a hierarchy of samples of increasing complexity: a mirror, a nitrocellulose membrane, and a biological sample comprising onion-skin cells. |
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652 |
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Terai, Hirotaka; Miki, Shigehito; Yamashita, Taro; Makise, Kazumasa; Wang, Zhen |
Title |
Demonstration of single-flux-quantum readout operation for superconducting single-photon detectors |
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Journal Article |
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2010 |
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Applied Physics Letters |
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Appl. Phys. Lett. |
Volume |
97 |
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11 |
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3 |
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SSPD |
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A readout circuit using superconducting single-flux-quantum (SFQ) circuits has been developed to realize an independently addressable array of superconducting single-photon detectors (SSPDs). We tested the SFQ readout circuits by connecting with SSPDs. The error rates of readout circuits were below 10–5 for input signal amplitude of greater than 18.2 μA. Detection efficiencies (DEs) for single-photon incidents were measured both with and without the connection of a readout circuit. The observed DEs traced almost the same curves regardless of the connection of the readout circuit, except that the SSPD is likely to latch by connecting the readout circuit. |
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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 |
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Conference Article |
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2011 |
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Proc. SPIE |
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Proc. SPIE |
Volume |
8072 |
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807202 (1 to 10) |
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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. |
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