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Author |
Sprengers, J. P.; Gaggero, A.; Sahin, D.; Jahanmirinejad, S.; Frucci, G.; Mattioli, F.; Leoni, R.; Beetz, J.; Lermer, M.; Kamp, M.; Höfling, S.; Sanjines, R.; Fiore A. |
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Title |
Waveguide superconducting single-photon detectors for integrated quantum photonic circuits |
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Journal Article |
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2011 |
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Applied Physics Letters |
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Appl. Phys. Lett. |
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99 |
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18 |
Pages |
181110(1-3) |
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optical waveguides, waveguide SSPD |
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The monolithic integration of single-photon sources, passive optical circuits, and single-photon detectors enables complex and scalable quantum photonic integrated circuits, for application in linear-optics quantum computing and quantum communications. Here, we demonstrate a key component of such a circuit, a waveguide single-photon detector. Our detectors, based on superconducting nanowires on GaAs ridge waveguides, provide high efficiency (~0%) at telecom wavelengths, high timing accuracy (~0 ps), and response time in the ns range and are fully compatible with the integration of single-photon sources, passive networks, and modulators. |
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847 |
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Henrich, D.; Dorner,S.; Hofherr, M.; Il'in, K.; Semenov, A.; Heintze, E.; Scheffler, M.; Dressel, M.; Siegel, M. |
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Title |
Broadening of hot-spot response spectrum of superconducting NbN nanowire single-photon detector with reduced nitrogen content |
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Journal Article |
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Year |
2012 |
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Abbreviated Journal |
J. Appl. Phys. |
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112 |
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SSPD, SNSPD, magnetron sputtering, spectrum, NbN film, nitrogen concentration |
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The spectral detection efficiency and the dark count rate of superconducting nanowire
single-photon detectors (SNSPD) have been studied systematically on detectors made from thin
NbN films with different chemical compositions. Reduction of the nitrogen content in the 4 nm
thick NbN films results in a decrease of the dark count rates more than two orders of magnitude
and in a red shift of the cut-off wavelength of the hot-spot SNSPD response. The observed
phenomena are explained by an improvement of uniformity of NbN films that has been confirmed
by a decrease of resistivity and an increase of the ratio of the measured critical current to the
depairing current. The latter factor is considered as the most crucial for both the cut-off
wavelength and the dark count rates of SNSPD. Based on our results we propose a set of criteria
for material properties to optimize SNSPD in the infrared spectral region. VC 2012 American
Institute of Physics. [http://dx.doi.org/10.1063/1.4757625] |
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D. Henrich, S. Dorner, M. Hofherr, K. Il'in, A. Semenov, E. Heintze, M. Scheffler, M. Dressel, M. Siegel |
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English |
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Broadening of hot-spot response spectrum of superconducting NbN nanowire single-photon detector with reduced nitrogen content |
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RPLAB @ seleznev @ |
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877 |
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Inderbitzin, K.; Engel, A.; Schilling, A.; Il'in, K.; Siegel, M. |
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An ultra-fast superconducting Nb nanowire single-photon detector for soft x-rays |
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Journal Article |
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Year |
2012 |
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Abbreviated Journal |
Appl. Phys. Lett. |
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101 |
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Keywords |
SSPD, SNSPD, x-ray, Nb |
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Although superconducting nanowire single-photon detectors (SNSPDs) are well studied regarding the
detection of infrared/optical photons and keV-molecules, no studies on continuous x-ray photon
counting by thick-film detectors have been reported so far. We fabricated a 100 nm thick niobium
x-ray SNSPD (an X-SNSPD) and studied its detection capability of photons with keV-energies in
continuous mode. The detector is capable to detect photons even at reduced bias currents of 0.4%,
which is in sharp contrast to optical thin-film SNSPDs. No dark counts were recorded in extended
measurement periods. Strikingly, the signal amplitude distribution depends significantly on the photon
energy spectrum.VC |
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RPLAB @ seleznev @ |
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878 |
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Julia Toussaint, Roman Grüner, Marco Schubert, Torsten May, Hans-Georg Meyer, Benjamin Dietzek, Jürgen Popp, Matthias Hofherr, Matthias Arndt, Dagmar Henrich, Konstantin Il'in, and Michael Siegel |
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Superconducting single-photon counting system for optical experiments requiring time-resolution in the picosecond range |
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Journal Article |
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Year |
2012 |
Publication |
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Abbreviated Journal |
AIP REVIEW OF SCIENTIFIC INSTRUMENTS |
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83 |
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Keywords |
SSPD, picosecond, time-resolution |
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We have developed a cryogenic measurement system for single-photon counting, which can be used
in optical experiments requiring high time resolution in the picosecond range. The system utilizes
niobium nitride superconducting nanowire single-photon detectors which are integrated in a timecorrelated
single-photon counting (TCSPC) setup. In this work, we describe details of the mechanical
design, the electrical setup, and the cryogenic optical components. The performance of the complete
system in TCSPC mode is tentatively benchmarked using 140 fs long laser pulses at a repetition
frequency of 75MHz. Due to the high temporal stability of these pulses, the measured time resolution
of 35 ps (FWHM) is limited by the timing jitter of the measurement system. The result was crosschecked
in a Coherent Anti-stokes Raman Scattering (CARS) setup, where scattered pulses from a
β-barium borate crystal have been detected with the same time resolution. |
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RPLAB @ seleznev @ |
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885 |
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Author |
Корнеева, Ю. П.; Флоря, И. Н.; Корнеев, А. А.; Гольцман, Г. Н. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Cверхпроводящий однофотонный детектор для дальнего ИК диапазона длин волн |
Type |
Conference Article |
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Year |
2010 |
Publication |
Науч. сессия НИЯУ МИФИ |
Abbreviated Journal |
Науч. сессия НИЯУ МИФИ |
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46-47 |
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SSPD |
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Мы представляем быстродействующий сверхпроводниковый однофотонный детектор (SSPD) для дальнего инфракрасного диапазона на основе ультратонкой монокристаллической пленки NbN толщиной 3 нм, состоящий из параллельных полосок. QE на длине волны 1,5.μм и 1,3 μм для предложенного SSPD практически одинаковы. SSPD показывает отклик длительностью 200 пс, что открывает путь к детекторам, обладающим скоростью счета свыше 1 ГГц. |
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978-5-7262-1227-2 |
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УДК 533.14(06)+004.056(06) Фотоника и информационная оптика |
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1144 |
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Author |
Манова, Н.Н.; Корнеева, Ю. П.; Корнеев, А. А., Гольцман, Г. Н. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Cверхпроводящий однофотонный детектор, интегрированный с оптическим резонатором |
Type |
Conference Article |
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Year |
2010 |
Publication |
Науч. сессия НИЯУ МИФИ |
Abbreviated Journal |
Науч. сессия НИЯУ МИФИ |
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92-93 |
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SSPD |
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978-5-7262-1227-2 |
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УДК 533.14(06)+004.056(06) Фотоника и информационная оптика |
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1143 |
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Author |
Флоря, И. Н. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Ультрабыстрый однофотонный детектор для оптических применений |
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Conference Article |
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Year |
2009 |
Publication |
Науч. сессия МИФИ |
Abbreviated Journal |
Науч. сессия МИФИ |
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45-46 |
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SSPD |
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Представлен сверхпроводниковый однофотонный детектор (SSPD) на основе ультратонкой пленки NbN, обладающий рекордным быстродействием. Активный элемент выполнен в виде N сверхпроводящих полосок соединенных параллельно, покрывающих площадку размером 10 мкм х 10 мкм. Для SSPD с N=12 длительность импульса напряжения составляет 200 пс. Полученные результаты открывают путь к детекторам обладающими скоростью счета свыше 1 ГГц, что делает SSPDs весьма привлекательными во многих применениях, в частности для квантовой криптографии. SSPD хорошо согласуется с оптоволокном и легко может быть интегрирован в полностью готовую для работы приемную систему. |
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978-5-7262-1042-1 |
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УДК 533.14(06)+004.056(06) Фотоника и информационная оптика |
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Author |
Семенов, Александр Владимирович |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Проскальзывание фазы, поглощение электромагнитного излучения и формирование отклика в детекторах на основе узких полосок сверхпроводников |
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2010 |
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М. МПГУ |
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SSPD, SNSPD, response |
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Ph.D. thesis |
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Russian |
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Zolotov, P.; Divochiy, A.; Korneeva, Yu.; Vakhtomin, Yu.; Seleznev, V.; Smirnov, K. |
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Capability investigation of superconducting single-photon detectors, optimized for 800–1200 nm spectrum range |
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Miscellaneous |
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2015 |
Publication |
3th ICQT |
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3th ICQT |
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SSPD, SNSPD |
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Hotel Ukraina (Radisson), Moscow |
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Author |
Sych, Denis; Shcherbatenko, Michael; Elezov, Michael; Goltsman, Gregory N. |
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Title |
Towards the improvement of the heterodyne receiver sensitivity beyond the quantum noise limit |
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Conference Article |
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Year |
2018 |
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Proc. 29th Int. Symp. Space Terahertz Technol. |
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Proc. 29th Int. Symp. Space Terahertz Technol. |
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245-247 |
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standard quantum limit, sub-SQL quantum receiver, Kennedy receiver, SSPD, SNSPD |
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Noise reduction in heterodyne receivers of the terahertz range is an important issue for astronomical applications. Quantum fluctuations, also known as shot noise, prohibit errorless measurements of the amplitude of electro-magnetic waves, and introduce the so-called standard quantum limit (SQL) on the minimum error of the heterodyne measurements. Nowadays, the sensitivity of modern heterodyne receivers approaches the SQL, and the growing demand for the improvement of measurement precision stimulates a number of both theoretical and experimental efforts to design novel measurement techniques aimed at overcoming the SQL. Here we demonstrate the first steps towards the practical implementation of a sub-SQL quantum receiver. As the principal resources, it requires a highly efficient single-photon counting detector and an interferometer-based scheme for mixing the signal with a low-power local oscillator. We describe the idea of such receiver and its main components. |
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