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Author |
Cherednichenko, S.; Yagoubov, P.; Il'in, K.; Gol'tsman, G.; Gershenzon, E. |
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Title |
Large bandwidth of NbN phonon-cooled hot-electron bolometer mixers |
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Year |
1997 |
Publication |
Proc. 27th Eur. Microwave Conf. |
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2 |
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972-977 |
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Keywords |
HEB mixer, fabrication process |
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Abstract |
The bandwidth of NbN phonon-cooled hot electron bolometer mixers has been systematically investigated with respect to the film thickness and film quality variation. The films, 2.5 to 10 nm thick, were fabricated on sapphire substrates using DC reactive magnetron sputtering. All devices consisted of several parallel strips, each 1 um wide and 2 um long, placed between Ti-Au contact pads. To measure the gain bandwidth we used two identical BWOs operating in the 120-140 GHz frequency range, one functioning as a local oscillator and the other as a signal source. The majority of the measurements were made at an ambient temperature of 4.2 K with optimal LO and DC bias. The maximum 3 dB bandwidth (about 4 GHz) was achieved for the devices made of films which were 2.5-3.5 nm thick, had a high critical temperature, and high critical current density. A theoretical analysis of bandwidth for these mixers based on the two-temperature model gives a good description of the experimental results if one assumes that the electron temperature is equal to the critical temperature. |
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Jerusalem, Israel |
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IEEE |
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27th Eur. Microwave Conf. |
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1075 |
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Author |
Trifonov, A.; Tong, C.-Y. E.; Grimes, P.; Lobanov, Y.; Kaurova, N.; Blundell, R.; Goltsman, G. |
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Title |
Development of A Silicon Membrane-based Multi-pixel Hot Electron Bolometer Receiver |
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Conference Article |
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Year |
2017 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
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27 |
Issue |
4 |
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6 |
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Keywords |
Multi-pixel, HEB, silicon-on-insulator, horn array |
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Abstract |
We report on the development of a multi-pixel
Hot Electron Bolometer (HEB) receiver fabricated using
silicon membrane technology. The receiver comprises a
2 × 2 array of four HEB mixers, fabricated on a single
chip. The HEB mixer chip is based on a superconducting
NbN thin film deposited on top of the silicon-on-insulator
(SOI) substrate. The thicknesses of the device layer and
handling layer of the SOI substrate are 20 μm and 300 μm
respectively. The thickness of the device layer is chosen
such that it corresponds to a quarter-wave in silicon at
1.35 THz. The HEB mixer is integrated with a bow-tie
antenna structure, in turn designed for coupling to a
circular waveguide, |
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RPLAB @ kovalyuk @ |
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1111 |
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Author |
Korneeva, Yuliya; Florya, Irina; Vdovichev, Sergey; Moshkova, Mariya; Simonov, Nikita; Kaurova, Natalia; Korneev, Alexander; Goltsman, Gregory |
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Title |
Comparison of hot-spot formation in NbN and MoN thin superconducting films after photon absorption |
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Conference Article |
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2017 |
Publication |
IEEE Transactions on Applied Superconductivity |
Abbreviated Journal |
IEEE Transactions on Applied Superconductiv |
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27 |
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4 |
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5 |
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Keywords |
Thin film devices, Superconducitng photoncounting devices, Nanowire single-photon detectors |
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Abstract |
In superconducting single-photon detectors SSPD
the efficiency of local suppression of superconductivity and hotspot
formation is controlled by diffusivity and electron-phonon
interaction time. Here we selected a material, 3.6-nm-thick MoNx
film, which features diffusivity close to those of NbN traditionally
used for SSPD fabrication, but with electron-phonon interaction
time an order of magnitude larger. In MoNx detectors we study
the dependence of detection efficiency on bias current, photon
energy, and strip width and compare it with NbN SSPD. We
observe non-linear current-energy dependence in MoNx SSPD
and more pronounced plateaus in dependences of detection
efficiency on bias current which we attribute to longer electronphonon
interaction time. |
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RPLAB @ kovalyuk @ |
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1114 |
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Author |
Elezov, M. S.; Ozhegov, R. V.; Goltsman, G. N.; Makarov, V. |
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Title |
Development of the experimental setup for investigation of latching of superconducting single-photon detector caused by blinding attack on the quantum key distribution system |
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Conference Article |
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Year |
2017 |
Publication |
EPJ Web of Conferences |
Abbreviated Journal |
EPJ Web of Conferences |
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Volume |
132 |
Issue |
2 |
Pages |
2 |
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Abstract |
Recently bright-light control of the SSPD has been
demonstrated. This attack employed a “backdoor†in the detector biasing
scheme. Under bright-light illumination, SSPD becomes resistive and
remains “latched†in the resistive state even when the light is switched off.
While the SSPD is latched, Eve can simulate SSPD single-photon response
by sending strong light pulses, thus deceiving Bob. We developed the
experimental setup for investigation of a dependence on latching threshold
of SSPD on optical pulse length and peak power. By knowing latching
threshold it is possible to understand essential requirements for
development countermeasures against blinding attack on quantum key
distribution system with SSPDs. |
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RPLAB @ kovalyuk @ |
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1116 |
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Author |
Korneev, Alexander; Golt'sman, Gregory; Pernice, Wolfram |
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Title |
Photonic integration meets single-photon detection |
Type |
Miscellaneous |
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Year |
2015 |
Publication |
Laser Focus World |
Abbreviated Journal |
Laser Focus World |
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Volume |
51 |
Issue |
5 |
Pages |
47-50 |
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Keywords |
optical waveguide SSPD, SNSPD |
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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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Author |
Лесс, Ю. А.; Кирсанов, Ю. А. |
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Былое и думы. Посвящение эпохе Н. Н. Малова, Е. М. Гершензона, В. С. Эткина |
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Miscellaneous |
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2015 |
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ПРФЛ |
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физфак МПГУ, физфак МГПИ, ПРФЛ |
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1132 |
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Kovalyuk, V.; Ferrari, S.; Kahl, O.; Semenov, A.; Lobanov, Y.; Shcherbatenko, M.; Korneev, A.; Pernice, W.; Goltsman, G. |
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Title |
Waveguide integrated superconducting single-photon detector for on-chip quantum and spectral photonic application |
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Conference Article |
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2017 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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917 |
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062032 |
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Keywords |
SSPD, SNSPD, waveguide |
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Abstract |
With use of the travelling-wave geometry approach, integrated superconductor- nanophotonic devices based on silicon nitride nanophotonic waveguide with a superconducting NbN-nanowire suited on top of the waveguide were fabricated. NbN-nanowire was operated as a single-photon counting detector with up to 92 % on-chip detection efficiency in the coherent mode, serving as a highly sensitive IR heterodyne mixer with spectral resolution (f/df) greater than 106 in C-band at 1550 nm wavelength |
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RPLAB @ kovalyuk @ |
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1140 |
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Author |
Zubkova, E.; An, P.; Kovalyuk, V.; Korneev, A.; Ferrari, S.; Pernice, W.; Goltsman, G. |
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Title |
Integrated Bragg waveguides as an efficient optical notch filter on silicon nitride platform |
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Conference Article |
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2017 |
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J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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917 |
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062042 |
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Si3N4, Bragg waveguides |
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We modeled and fabricated integrated optical Bragg waveguides on a silicon nitride (Si3N4) platform. These waveguides would serve as efficient notch-filters with the desired characteristics. Transmission spectra of the fabricated integrated notch filters have been measured and attenuation at the desired wavelength of 1550 nm down to -43 dB was observed. Performance of the filters has been studied depending on different parameters, such as pitch, filling factor, and height of teeth of the Bragg grating |
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RPLAB @ kovalyuk @ |
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1141 |
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Author |
Chuprina, I. N.; An, P. P.; Zubkova, E. G.; Kovalyuk, V. V.; Kalachev, A. A.; Gol'tsman, G. N. |
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Title |
Optimisation of spontaneous four-wave mixing in a ring microcavity |
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Conference Article |
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2017 |
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J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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Volume |
47 |
Issue |
10 |
Pages |
887-891 |
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ring microcavity |
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Abstract. A theory of spontaneous four-wave mixing in a ring microcavity is developed. The rate of emission of biphotons for pulsed and monochromatic pumping with allowance for the disper- sion of group velocities is analytically calculated. In the first case, pulses in the form of an increasing exponential are considered, which are optimal for excitation of an individual resonator mode. The behaviour of the group velocity dispersion as a function of the width and height of the waveguide is studied for a specific case of a ring microcavity made of silicon nitride. The results of the numeri- cal calculation are in good agreement with the experimental data. The ring microcavity is made of two types of waveguides: com- pletely etched and half etched. It is found that the latter allow for better control over the parameters in the manufacturing process, making them more predictable. |
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RPLAB @ kovalyuk @ |
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1142 |
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Author |
Манова, Н.Н.; Корнеева, Ю. П.; Корнеев, А. А., Гольцман, Г. Н. |
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Cверхпроводящий однофотонный детектор, интегрированный с оптическим резонатором |
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2010 |
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Науч. сессия НИЯУ МИФИ |
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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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