| Records |
| Author |
Елманова, А.; Елманов, И.; Комракова, С.; Голиков, А.; Джавадзадэ, Д.; Воробьёв, В.; Большедворский, С.; Сошенко, В.; Акимов, А.; Ковалюк, В.; Гольцман, Г. |
| Title |
Способ интеграции наноалмазов с нанофотонными устройствами из нитрида кремния |
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Conference Article |
| Year |
2019 |
Publication |
Proc. IWQO |
Abbreviated Journal |
Proc. IWQO |
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Issue |
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Pages |
309-311 |
| Keywords |
nanodiamonds, NV-centers |
| Abstract |
В работе были разработаны оптические структуры из нитрида кремния для дальнейшего размещения на них наноалмазов с NV-центрами, опробованы различные методики нанесения раствора наноалмазов и выбрана оптимальная. Работа имеет практическое значение в области нанофотоники и создании квантово-оптических устройств с однофотонными источниками. |
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Duplicated as 1190 |
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1285 |
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Goltsman, G. |
| Title |
Quantum-photonic integrated circuits |
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Conference Article |
| Year |
2019 |
Publication |
Proc. IWQO |
Abbreviated Journal |
Proc. IWQO |
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22-23 |
| Keywords |
WSSPD, waveguide SSPD, SNSPD, quantum optics, integrated optics, superconducting nanowire single-photon detector |
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We show the design, a history of development as well as the most successful and promising approaches for QPICs realization based on hybrid nanophotonic-superconducting devices, where one of the key elements of such a circuit is a waveguide integrated superconducting single-photon detector (WSSPD). The potential of integration with fluorescent molecules is discussed also. |
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1287 |
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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 |
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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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Kawamura, J.; Blundell, R.; Tong, C.-Y. E.; Papa, D. C.; Hunter, T. R.; Paine, S. N.; Patt, F.; Gol'tsman, G.; Cherednichenko, S.; Voronov, B.; Gershenzon, E. |
| Title |
Superconductive hot-electron-bolometer mixer receiver for 800-GHz operation |
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Journal Article |
| Year |
2000 |
Publication |
IEEE Trans. Microw. Theory Techn. |
Abbreviated Journal |
IEEE Trans. Microw. Theory Techn. |
| Volume |
48 |
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4 |
Pages |
683-689 |
| Keywords |
NbN HEB mixers, LO power, local oscillator power, saturation, linearity, dynamic range |
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In this paper, we describe a superconductive hot-electron-bolometer mixer receiver designed to operate in the partially transmissive 350-μm atmospheric window. The receiver employs an NbN thin-film microbridge as the mixer element, in which the main cooling mechanism of the hot electrons is through electron-phonon interaction. At a local-oscillator frequency of 808 GHz, the measured double-sideband receiver noise temperature is TRX=970 K, across a 1-GHz intermediate-frequency bandwidth centered at 1.8 GHz. We have measured the linearity of the receiver and the amount of local-oscillator power incident on the mixer for optimal operation, which is PLO≈1 μW. This receiver was used in making observations as a facility instrument at the Heinrich Hertz Telescope, Mt. Graham, AZ, during the 1998-1999 winter observing season. |
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0018-9480 |
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RPLAB @ lobanovyury @ |
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573 |
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Meledin, Denis; Pavolotsky, Alexey; Desmaris, Vincent.; Lapkin, Igor; Risacher, Christophe; Perez, Victor; Henke, Douglas; Nystrom, Olle; Sundin, Erik; Dochev, Dimitar; Pantaleev, Miroslav; Fredrixon, Mathias; Strandberg, Magnus; Voronov, Boris; Goltsman, Gregory; Belitsky, Victor |
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A 1.3-THz balanced waveguide HEB mixer for the APEX telescope |
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Journal Article |
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2009 |
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IEEE Trans. Microw. Theory Techn. |
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57 |
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1 |
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89-98 |
| Keywords |
HEB, mixer, waveguide, balanced, NbN |
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In this paper, we report about the development, fabrication, and characterization of a balanced waveguide hot electron bolometer (HEB) receiver for the Atacama Pathfinder EXperiment telescope covering the frequency band of 1.25–1.39 THz. The receiver uses a quadrature balanced scheme and two HEB mixers, fabricated from 4- to 5-nm-thick NbN film deposited on crystalline quartz substrate with an MgO buffer layer in between. We employed a novel micromachining method to produce all-metal waveguide parts at submicrometer accuracy (the main-mode waveguide dimensions are 90×180 μm). We present details on the mixer design and measurement results, including receiver noise performance, stability and “first-light†at the telescope site. The receiver yields a double-sideband noise temperature averaged over the RF band below 1200 K, and outstanding stability with a spectroscopic Allan time more than 200 s. |
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0018-9480 |
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RPLAB @ lobanovyury @ |
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554 |
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Ryabchun, Sergey; Tong, Cheuk-Yu Edward; Blundell, Raymond; Gol'tsman, Gregory |
| Title |
Stabilization scheme for hot-electron bolometer receivers using microwave radiation |
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Journal Article |
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2009 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
| Volume |
19 |
Issue |
1 |
Pages |
14-19 |
| Keywords |
HEB, mixer, Allan variance, stabilization, radiometer equation |
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We present the results of a stabilization scheme for terahertz receivers based on NbN hot-electron bolometer (HEB) mixers that uses microwave radiation with a frequency much lower than the gap frequency of NbN to compensate for mixer current fluctuations. A feedback control loop, which actively controls the power level of the injected microwave radiation, has successfully been implemented to stabilize the operating point of the HEB mixer. This allows us to increase the receiver Allan time to 10 s and also improve the temperature resolution of the receiver by about 30% in the total power mode of operation. |
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1051-8223 |
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RPLAB @ lobanovyury @ |
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559 |
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Korneev, Alexander; Vachtomin, Yury; Minaeva, Olga; Divochiy, Alexander; Smirnov, Konstantin; Okunev, Oleg; Gol'tsman, Gregory; Zinoni, C.; Chauvin, Nicolas; Balet, Laurent; Marsili, Francesco; Bitauld, David; Alloing, Blandine; Li, Lianhe; Fiore, Andrea; Lunghi, L.; Gerardino, Annamaria; Halder, Matthäus; Jorel, Corentin; Zbinden, Hugo |
| Title |
Single-photon detection system for quantum optics applications |
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Journal Article |
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2007 |
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IEEE J. Select. Topics Quantum Electron. |
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IEEE J. Select. Topics Quantum Electron. |
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13 |
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4 |
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944-951 |
| Keywords |
SSPD, SNSPD |
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We describe the design and characterization of a fiber-coupled double-channel single-photon detection system based on superconducting single-photon detectors (SSPD), and its application for quantum optics experiments on semiconductor nanostructures. When operated at 2-K temperature, the system shows 10% quantum efficiency at 1.3-¿m wavelength with dark count rate below 10 counts per second and timing resolution <100 ps. The short recovery time and absence of afterpulsing leads to counting frequencies as high as 40 MHz. Moreover, the low dark count rate allows operation in continuous mode (without gating). These characteristics are very attractive-as compared to InGaAs avalanche photodiodes-for quantum optics experiments at telecommunication wavelengths. We demonstrate the use of the system in time-correlated fluorescence spectroscopy of quantum wells and in the measurement of the intensity correlation function of light emitted by semiconductor quantum dots at 1300 nm. |
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1077-260X |
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430 |
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Gol'tsman, G.; Minaeva, O.; Korneev, A.; Tarkhov, M.; Rubtsova, I.; Divochiy, A.; Milostnaya, I.; Chulkova, G.; Kaurova, N.; Voronov, B.; Pan, D.; Kitaygorsky, J.; Cross, A.; Pearlman, A.; Komissarov, I.; Slysz, W.; Wegrzecki, M.; Grabiec, P.; Sobolewski, R. |
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Middle-infrared to visible-light ultrafast superconducting single-photon detectors |
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Journal Article |
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2007 |
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IEEE Trans. Appl. Supercond. |
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IEEE Trans. Appl. Supercond. |
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17 |
Issue |
2 |
Pages |
246-251 |
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SSPD, SNSPD |
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We present an overview of the state-of-the-art of NbN superconducting single-photon detectors (SSPDs). Our devices exhibit quantum efficiency (QE) of up to 30% in near-infrared wavelength and 0.4% at 5 mum, with a dark-count rate that can be as low as 10 -4 s -1 . The SSPD structures integrated with lambda/4 microcavities achieve a QE of 60% at telecommunication, 1550-nm wavelength. We have also developed a new generation of SSPDs that possess the QE of large-active-area devices, but, simultaneously, are characterized by low kinetic inductance that allows achieving short response times and the GHz-counting rate with picosecond timing jitter. The improvements presented in the SSPD development, such as fiber-coupled SSPDs, make our detectors most attractive for high-speed quantum communications and quantum computing. |
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431 |
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Tong, C.-Y.E.; Meledin, D.V.; Marrone, D.P.; Paine, S.N.; Gibson, H.; Blundell, R. |
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Near field vector beam measurements at 1 THz |
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Journal Article |
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2003 |
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IEEE Microw. Compon. Lett. |
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13 |
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6 |
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235-237 |
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HEB, mixer, waveguide, LO power, local oscillator power, saturation effect, dynamic range |
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We have performed near-field vector beam measurements at 1.03 THz to characterize and align the receiver optics of a superconducting receiver. The signal source is a harmonic generator mounted on an X-Y translation stage. We model the measured two-dimensional complex beam pattern by a fundamental Gaussian mode, from which we derive the position of the beam center, the beam radius and the direction of propagation. By performing scans in the planes separated by 400 mm, we have confirmed that our beam pattern measurements are highly reliable. |
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1531-1309 |
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RPLAB @ lobanovyury @ |
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574 |
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Klapwijk, T. M.; Semenov, A. V. |
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Engineering physics of superconducting hot-electron bolometer mixers |
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Journal Article |
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2017 |
Publication |
IEEE Trans. THz Sci. Technol. |
Abbreviated Journal |
IEEE Trans. THz Sci. Technol. |
| Volume |
7 |
Issue |
6 |
Pages |
627-648 |
| Keywords |
HEB mixers |
| Abstract |
Superconducting hot-electron bolometers are presently the best performing mixing devices for the frequency range beyond 1.2 THz, where good-quality superconductor-insulator-superconductor devices do not exist. Their physical appearance is very simple: an antenna consisting of a normal metal, sometimes a normal-metal-superconductor bilayer, connected to a thin film of a narrow short superconductor with a high resistivity in the normal state. The device is brought into an optimal operating regime by applying a dc current and a certain amount of local-oscillator power. Despite this technological simplicity, its operation has found to be controlled by many different aspects of superconductivity, all occurring simultaneously. A core ingredient is the understanding that there are two sources of resistance in a superconductor: a charge-conversion resistance occurring at a normal-metal-superconductor interface and a resistance due to time-dependent changes of the superconducting phase. The latter is responsible for the actual mixing process in a nonuniform superconducting environment set up by the bias conditions and the geometry. The present understanding indicates that further improvement needs to be found in the use of other materials with a faster energy relaxation rate. Meanwhile, several empirical parameters have become physically meaningful indicators of the devices, which will facilitate the technological developments. |
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2156-342X |
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