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Minaeva, O.; Divochiy, A.; Korneev, A.; Sergienko, A. V.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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High speed infrared photon counting with photon number resolving superconducting single-photon detectors (SSPDs) |
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Conference Article |
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2009 |
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CLEO/Europe – EQEC |
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CLEO/Europe – EQEC |
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SSPD, SNSPD |
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A review of development and characterization of the nanostructures consisting of several meander sections, all connected in parallel was presented. Such geometry leads to a significant decrease of the kinetic inductance, without a decrease of the SSPD active area. A new type of SSPDs possess the QE of large-active- area devices, but, simultaneously, allows achieving short response times and the GHz-counting rate. This new generation of superconducting detectors has another significant advantage for quantum key distribution, they have a photon number resolving capability and can distinguish more photons. |
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1399 |
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Author |
Goltsman, G. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Superconducting NbN hot-electron bolometer mixer, direct detector and single-photon counter: from devices to systems |
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Report |
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2009 |
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2-nd Int. Conf. EUROFLUX |
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2-nd Int. Conf. EUROFLUX |
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HEB, SSPD, SNSPD |
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Avignon, France |
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Provided by the SAO/NASA Astrophysics Data System |
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1398 |
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Ozhegov, R. V.; Gorshkov, K. N.; Smirnov, K. V.; Gol’tsman, G. N.; Filippenko, L. V.; Koshelets, V. P. |
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Terahertz imaging system based on superconducting integrated receiver |
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Conference Article |
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2010 |
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Proc. 2-nd Int. Conf. Terahertz and Microwave radiation: Generation, Detection and Applications |
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Proc. 2-nd Int. Conf. Terahertz and Microwave radiation: Generation, Detection and Applications |
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20-22 |
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SIS mixer, SIR |
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The development of terahertz imaging instruments for security systems is on the cutting edge of terahertz technology. We are developing a THz imaging system based on a superconducting integrated receiver (SIR). An SIR is a new type of heterodyne receiver based on an SIS mixer integrated with a flux-flow oscillator (FFO) and a harmonic mixer which is used for phase-locking the FFO. Developing an array of SIRs would allow obtaining amplitude and phase characteristics of incident radiation in the plane of the receiver. Employing an SIR in an imaging system means building an entirely new instrument with many advantages compare to traditional systems: i) high temperature resolution, comparable to the best results for incoherent receivers; ii) high spectral resolution allowing spectral analysis of various substances; iii) the local oscillator frequency can be varied to obtain images at different frequencies, effectively providing “color” images; iv) since a heterodyne receiver preserves the phase of the radiation, it is possible to construct 3D images. The paper presents a prototype THz imaging system using an 1 pixel SIR. We have studied the dependence of the noise equivalent temperature difference (NETD) on the integration time and also possible ways of achieving best possible sensitivity. An NETD of 13 mK was obtained with an integration time of 1 sec a detection bandwidth of 4 GHz at a local oscillator frequency of 520 GHz. An important advantage of an FFO is its wide operation range: 300-700 GHz. |
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ozhegov2010terahertz |
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1397 |
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Zinoni, C.; Alloing, B.; Li, L. H.; Marsili, F.; Fiore, A.; Lunghi, L.; Gerardino, A.; Vakhtomin, Y. B.; Smirnov, K. V.; Gol’tsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Single-photon experiments at telecommunication wavelengths using nanowire superconducting detectors |
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Journal Article |
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2007 |
Publication |
Appl. Phys. Lett. |
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Appl. Phys. Lett. |
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91 |
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3 |
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031106 (1 to 3) |
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SSPD, SNSPD, APD |
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The authors report fiber-coupled superconducting single-photon detectors with specifications that exceed those of avalanche photodiodes, operating at telecommunication wavelength, in sensitivity, temporal resolution, and repetition frequency. The improved performance is demonstrated by measuring the intensity correlation function g(2)(τ) of single-photon states at 1300nm produced by single semiconductor quantum dots.
This work was supported by Swiss National Foundation through the “Professeur borsier” and NCCR Quantum Photonics program, FP6 STREP “SINPHONIA” (Contract No. NMP4-CT-2005-16433), IP “QAP” (Contract No. 15848), NOE “ePIXnet,” and the Italian MIUR-FIRB program. |
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0003-6951 |
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Erratum: 1395 |
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1396 |
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Zinoni, C.; Alloing, B.; Li, L. H.; Marsili, F.; Fiore, A.; Lunghi, L.; Gerardino, A.; Vakhtomin, Y. B.; Smirnov, K. V.; Gol’tsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Erratum: “Single photon experiments at telecom wavelengths using nanowire superconducting detectors” [Appl. Phys. Lett. 91, 031106 (2007)] |
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2010 |
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Appl. Phys. Lett. |
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Appl. Phys. Lett. |
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96 |
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8 |
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089901 |
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SSPD, SNSPD, erratum |
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A calculation error was made in the original publication of this letter. The error was in the calculation of the noise equivalent power (NEP) values for the avalanche photodiode detector (APD) and the superconducting single photon detector (SSPD), the incorrect values were plotted on the right axis in Fig. 1(b). The correct NEP values were calculated with the same equation reported in the original letter and the revised Fig. 1(b) is shown below. The other conclusions of the paper remain unaltered. |
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0003-6951 |
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1395 |
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