Records |
Author |
Pentin, Ivan; Finkel, Matvey; Maslennikov, Sergey; Vakhtomin, Yuri; Smirnov, Konstantin; Kaurova, Nataliya; Goltsman, Gregory |
Title |
Superconducting hot-electron-bolometer mixers for the mid-IR |
Type |
Journal Article |
Year |
2017 |
Publication |
Rus. J. Radio Electron. |
Abbreviated Journal |
Rus. J. Radio Electron. |
Volume |
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Issue |
10 |
Pages |
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Keywords |
IR NbN HEB mixers |
Abstract |
The work presents the result of development of the NbN superconducting hot-electron-bolometer (HEB) mixer. The sensitive element of the mixer is directly coupled to mid-IR radiation, and doesn’t have planar metallic antenna. Investigations of noise characteristics of NbN HEB mixer were performed at the frequency 28.4 THz (λ = 10.6 µm) by using gas-discharge CW CO2-laser without consideration of optical and electrical losses in the heterodyne receiver. The noise temperature of NbN HEB mixer with the size of the sensitive element 10 µm × 10 µm was 2320 K (~ 1.5hν/kB) at the heterodyne frequency of 28.4 THz. The noise temperature was determined by measuring the Y-factor taking into account the term which describes fluctuations of zero-point oscillations in accordance with the fluctuation-dissipation theorem of Calle-Welton. Isothermal method was used to estimate the absorbed heterodyne radiation power which was 9 µW at the optimal operating point for the minimum noise temperature of NbN HEB mixer. |
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Language |
Russian |
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ISSN |
1684-1719 |
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Notes |
http://jre.cplire.ru/jre/oct17/9/abstract.html (Russian) Гетеродинный приемник со сверхпроводниковым смесителем на эффекте электронного разогрева для среднего инфракрасного диапазона |
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no |
Call Number |
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Serial |
1747 |
Permanent link to this record |
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Author |
Manova, N. N.; Simonov, N. O.; Korneeva, Y. P.; Korneev, A. A. |
Title |
Developing of NbN films for superconducting microstrip single-photon detector |
Type |
Conference Article |
Year |
2020 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1695 |
Issue |
|
Pages |
012116 (1 to 5) |
Keywords |
NbN SSPD, SNSPD, NbN films |
Abstract |
We optimized NbN films on a Si substrate with a buffer SiO2 layer to produce superconducting microstrip single-photon detectors with saturated dependence of quantum efficiency (QE) versus normalized bias current. We varied thickness of films and observed the maximum QE saturation for device based on the thinner film with the lowest ratio RS300/RS20. |
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Edition |
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ISSN |
1742-6588 |
ISBN |
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Notes |
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no |
Call Number |
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Serial |
1786 |
Permanent link to this record |
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Author |
Voss, Chris; Raz, Tahl |
Title |
Never split the difference: negotiating as if your life depended on it |
Type |
Book Whole |
Year |
2016 |
Publication |
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Volume |
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Issue |
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Pages |
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Keywords |
business, negotiating, psychology, FBI |
Abstract |
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Publisher |
HarperCollins |
Place of Publication |
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Editor |
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Edition |
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ISBN |
978-0-06-240780-1 |
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Notes |
pdf, epub, mp3 (audio book) -- 85 MB in total |
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no |
Call Number |
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Serial |
1838 |
Permanent link to this record |
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Author |
Elmanov, Ilia; Elmanova, Anna; Kovalyuk, Vadim; An, Pavel; Goltsman, Gregory |
Title |
Integrated contra-directional coupler for NV-centers photon filtering |
Type |
Conference Article |
Year |
2020 |
Publication |
Proc. 32-nd EMSS |
Abbreviated Journal |
Proc. 32-nd EMSS |
Volume |
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Issue |
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Pages |
354-360 |
Keywords |
NV-centers, nanodiamonds, quantum photonic integrated circuits, contra-direction coupler, Bragg gratings |
Abstract |
We modelled an integrated optical contra-directional coupler on silicon nitride platform. Performance of the filter was studied depending on different parameters, including the grating period and the height of teeth of the Bragg grating near 637 nm operation wavelength. The obtained results can be used for a design and fabrication of quantum photonic integrated circuits with on-chip single-photon NV-centers in nanodiamonds. |
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Series Issue |
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Edition |
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ISSN |
2724-0029 |
ISBN |
978-88-85741-44-7 |
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Area |
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Conference |
32nd European Modeling & Simulation Symposium |
Notes |
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no |
Call Number |
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Serial |
1839 |
Permanent link to this record |
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Author |
Elmanov, Ilia; Elmanova, Anna; Kovalyuk, Vadim; An, Pavel; Goltsman, Gregory |
Title |
Silicon nitride photonic crystal cavity coupled with NV-centers in nanodiamonds |
Type |
Conference Article |
Year |
2020 |
Publication |
Proc. 32-nd EMSS |
Abbreviated Journal |
Proc. 32-nd EMSS |
Volume |
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Issue |
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Pages |
344-348 |
Keywords |
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Abstract |
The development of integrated quantum photonics requires a high efficient excitation and coupling of a single photon source with on-chip devices. In this paper, we show our results of modelling for high-Q photonic crystal cavity, optimized for zero phonon line emission of NV-centers in nanodiamonds. Modelling was performed for the silicon nitride platform and obtained a quality factor equals to 6136 at 637 nm wavelength. |
Address |
NV-centers, nanodiamonds |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2724-0029 |
ISBN |
978-88-85741-44-7 |
Medium |
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Area |
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Expedition |
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Conference |
32nd European Modeling & Simulation Symposium |
Notes |
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no |
Call Number |
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Serial |
1840 |
Permanent link to this record |