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Author |
Elezov, M.; Ozhegov, R.; Goltsman, G.; Makarov, V. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
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Title |
Countermeasure against bright-light attack on superconducting nanowire single-photon detector in quantum key distribution |
Type |
Journal Article |
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Year |
2019 |
Publication |
Opt. Express |
Abbreviated Journal |
Opt. Express |
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Volume |
27 |
Issue |
21 |
Pages |
30979-30988 |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD, SNSPD |
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Abstract |
We present an active anti-latching system for superconducting nanowire single-photon detectors. We experimentally test it against a bright-light attack, previously used to compromise security of quantum key distribution. Although our system detects continuous blinding, the detector is shown to be partially blindable and controllable by specially tailored sequences of bright pulses. Improvements to the countermeasure are suggested. |
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1094-4087 |
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PMID:31684339 |
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no |
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1275 |
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Author |
Korneev, A.; Korneeva, Y.; Florya, I.; Semenov, A.; Goltsman, G. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
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Title |
Photon switching statistics in multistrip superconducting single-photon detectors |
Type |
Journal Article |
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Year |
2018 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
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Volume |
28 |
Issue |
7 |
Pages |
1-4 |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD, SNSPD |
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Abstract |
We study photon count statistics in superconducting single-photon detectors consisting of up to 70 narrow superconducting strips connected in parallel. Using interarrival time analysis, we demonstrate that our samples are operated in the “arm-trigger” regime and require up to seven subsequently absorbed photons to form a resistive state in the whole sample. We also performed numerical simulation of the light and dark count rates versus detector bias current, which are in good agreement with the experimental results. |
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1051-8223 |
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no |
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1304 |
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Author |
Vodolazov, D. Y.; Korneeva, Y. P.; Semenov, A. V.; Korneev, A. A.; Goltsman, G. N. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
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Title |
Vortex-assisted mechanism of photon counting in a superconducting nanowire single-photon detector revealed by external magnetic field |
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Journal Article |
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Year |
2015 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
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Volume |
92 |
Issue |
10 |
Pages |
104503 (1 to 9) |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD, SNSPD |
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Abstract |
We use an external magnetic field to probe the detection mechanism of a superconducting nanowire single-photon detector. We argue that the hot belt model (which assumes partial suppression of the superconducting order parameter Δ across the whole width of the superconducting nanowire after absorption of the photon) does not explain observed weak-field dependence of the photon count rate (PCR) for photons with λ=450nm and noticeable decrease of PCR (with increasing the magnetic field) in a range of the currents for photons with wavelengths λ=450–1200nm. Found experimental results for all studied wavelengths can be explained by the vortex hot spot model (which assumes partial suppression of Δ in the area with size smaller than the width of the nanowire) if one takes into account nucleation and entrance of the vortices to the photon induced hot spot and their pinning by the hot spot with relatively large size and strongly suppressed Δ. |
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1098-0121 |
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no |
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1343 |
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Author |
Minaeva, O.; Divochiy, A.; Korneev, A.; Sergienko, A. V.; Goltsman, G. N. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
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Title |
High speed infrared photon counting with photon number resolving superconducting single-photon detectors (SSPDs) |
Type |
Conference Article |
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Year |
2009 |
Publication |
CLEO/Europe – EQEC |
Abbreviated Journal |
CLEO/Europe – EQEC |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD, SNSPD |
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Abstract |
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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no |
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Call Number |
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1399 |
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Author |
Nasr, M. B.; Minaeva, O.; Goltsman, G. N.; Sergienko, A. V.; Saleh, B. E.; Teich, M. C. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
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Title |
Submicron axial resolution in an ultrabroadband two-photon interferometer using superconducting single-photon detectors |
Type |
Journal Article |
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Year |
2008 |
Publication |
Opt. Express |
Abbreviated Journal |
Opt. Express |
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Volume |
16 |
Issue |
19 |
Pages |
15104-15108 |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD, SNSPD |
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Abstract |
We generate ultrabroadband biphotons via the process of spontaneous parametric down-conversion in a quasi-phase-matched nonlinear grating that has a linearly chirped poling period. Using these biphotons in conjunction with superconducting single-photon detectors (SSPDs), we measure the narrowest Hong-Ou-Mandel dip to date in a two-photon interferometer, having a full width at half maximum (FWHM) of approximately 5.7 fsec. This FWHM corresponds to a quantum optical coherence tomography (QOCT) axial resolution of 0.85 µm. Our results indicate that a high flux of nonoverlapping biphotons may be generated, as required in many applications of nonclassical light. |
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Departments of Electrical & Computer Engineering and Physics, Quantum Imaging Laboratory, Boston University, Boston, MA 02215, USA. boshra@bu.edu |
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1094-4087 |
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Notes |
PMID:18795048 |
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no |
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Call Number |
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Serial |
1408 |
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Permanent link to this record |
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Author |
Elezov, M. S.; Semenov, A. V.; An, P. P.; Tarkhov, M. A.; Goltsman, G. N.; Kardakova, A. I.; Kazakov, A. Y. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
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Title |
Investigating the detection regimes of a superconducting single-photon detector |
Type |
Journal Article |
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Year |
2013 |
Publication |
J. Opt. Technol. |
Abbreviated Journal |
J. Opt. Technol. |
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Volume |
80 |
Issue |
7 |
Pages |
435 |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD, quantum efficiency |
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Abstract |
The detection regimes of a superconducting single-photon detector have been investigated. A technique is proposed for determining the regions in which “pure regimes” predominate. Based on experimental data, the dependences of the internal quantum efficiency on the bias current are determined in the one-, two-, and three-photon detection regimes. |
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1070-9762 |
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no |
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1172 |
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Author |
Shcherbatenko, M.; Lobanov, Y.; Semenov, A.; Kovalyuk, V.; Korneev, A.; Ozhegov, R.; Kaurova, N.; Voronov, B.; Goltsman, G. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
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Title |
Coherent detection of weak signals with superconducting nanowire single photon detector at the telecommunication wavelength |
Type |
Conference Article |
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Year |
2017 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
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Volume |
10229 |
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Pages |
0G (1 to 12) |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD mixer, SNSPD, coherent detection, weak signal detection, superconducting nanostructures |
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Abstract |
Achievement of the ultimate sensitivity along with a high spectral resolution is one of the frequently addressed problems, as the complication of the applied and fundamental scientific tasks being explored is growing up gradually. In our work, we have investigated performance of a superconducting nanowire photon-counting detector operating in the coherent mode for detection of weak signals at the telecommunication wavelength. Quantum-noise limited sensitivity of the detector was ensured by the nature of the photon-counting detection and restricted by the quantum efficiency of the detector only. Spectral resolution given by the heterodyne technique and was defined by the linewidth and stability of the Local Oscillator (LO). Response bandwidth was found to coincide with the detector’s pulse width, which, in turn, could be controlled by the nanowire length. In addition, the system noise bandwidth was shown to be governed by the electronics/lab equipment, and the detector noise bandwidth is predicted to depend on its jitter. As have been demonstrated, a very small amount of the LO power (of the order of a few picowatts down to hundreds of femtowatts) was required for sufficient detection of the test signal, and eventual optimization could lead to further reduction of the LO power required, which would perfectly suit for the foreseen development of receiver matrices and the need for detection of ultra-low signals at a level of less-than-one-photon per second. |
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Spie |
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Prochazka, I.; Sobolewski, R.; James, R.B. |
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Photon counting applications |
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no |
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10.1117/12.2267724 |
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1201 |
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Lobanov, Y. V.; Shcherbatenko, M. L.; Semenov, A. V.; Kovalyuk, V. V.; Korneev, A. A.; Goltsman, G. N.; Vinogradov, E. A.; Naumov, A. V.; Gladush, M. G.; Karimullin, K. R. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
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Title |
Heterodyne spectroscopy with superconducting single-photon detector |
Type |
Conference Article |
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Year |
2017 |
Publication |
EPJ Web Conf. |
Abbreviated Journal |
EPJ Web Conf. |
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Volume |
132 |
Issue |
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Pages |
01005 |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD mixer, SNSPD |
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Abstract |
We demonstrate successful operation of a Superconducting Single Photon Detector (SSPD) as the core element in a heterodyne receiver. Irradiating the SSPD by both a local oscillator power and signal power simultaneously, we observed beat signal at the intermediate frequency of a few MHz. Gain bandwidth was found to coincide with the detector single pulse width, where the latter depends on the detector kinetic inductance, determined by the superconducting nanowire length. |
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2100-014X |
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no |
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1205 |
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Author |
Shcherbatenko, M. L.; Elezov, M. S.; Goltsman, G. N.; Sych, D. V. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
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Title |
Sub-shot-noise-limited fiber-optic quantum receiver |
Type |
Journal Article |
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Year |
2020 |
Publication |
Phys. Rev. A |
Abbreviated Journal |
Phys. Rev. A |
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Volume |
101 |
Issue |
3 |
Pages |
032306 (1 to 5) |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD mixer, SNSPD |
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We experimentally demonstrate a quantum receiver based on the Kennedy scheme for discrimination between two phase-modulated weak coherent states. The receiver is assembled entirely from standard fiber-optic elements and operates at a conventional telecom wavelength of 1.55 μm. The local oscillator and the signal are transmitted through different optical fibers, and the displaced signal is measured with a high-efficiency superconducting nanowire single-photon detector. We show the discrimination error rate is two times below that of a shot-noise-limited receiver with the same system detection efficiency. |
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2469-9926 |
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no |
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1268 |
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Author |
Korneeva, Y.; Florya, I.; Semenov, A.; Korneev, A.; Goltsman, G. |
![find record details (via OpenURL) openurl](https://db.rplab.ru/refbase/img/xref.gif)
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Title |
New generation of nanowire NbN superconducting single-photon detector for mid-infrared |
Type |
Journal Article |
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Year |
2011 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
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Volume |
21 |
Issue |
3 |
Pages |
323-326 |
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Keywords ![sorted by Keywords field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
SSPD |
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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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