Records |
Author |
Fedorov, G. E.; Gaiduchenko, I. A.; Golikov, A. D.; Rybin, M. G.; Obraztsova, E. D.; Voronov, B. M.; Coquillat, D.; Diakonova, N.; Knap, W.; Goltsman, G. N.; Samartsev, V. V.; Vinogradov, E. A.; Naumov, A. V.; Karimullin, K. R. |
Title |
Response of graphene based gated nanodevices exposed to THz radiation |
Type |
Conference Article |
Year |
2015 |
Publication |
EPJ Web of Conferences |
Abbreviated Journal |
EPJ Web of Conferences |
Volume |
103 |
Issue |
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Pages |
10003 (1 to 2) |
Keywords |
graphene field-effect transistor, FET |
Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
In this work we report on the response of asymmetric graphene based devices to subterahertz and terahertz radiation. Our devices are made in a configuration of a field-effect transistor with conduction channel between the source and drain electrodes formed with a CVD-grown graphene. The radiation is coupled through a spiral antenna to source and top gate electrodes. Room temperature responsivity of our devices is close to the values that are attractive for commercial applications. Further optimization of the device configuration may result in appearance of novel terahertz radiation detectors. |
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2100-014X |
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1350 |
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Moskotin, M. V.; Gayduchenko, I. A.; Goltsman, G. N.; Titova, N.; Voronov, B. M.; Fedorov, G. F.; Pyatkov, F.; Hennrich, F. |
Title |
Bolometric effect for detection of sub-THz radiation with devices based on carbon nanotubes |
Type |
Conference Article |
Year |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051050 (1 to 5) |
Keywords |
field-effect transistor, FET, carbon nanotube, CNT |
Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
In this work we investigate the response on THz radiation of a FET device based on an individual carbon nanotube conductance channel. It was already shown, that the response of such devices can be either of diode rectification origin or of thermoelectric effect origin or of their combination. In this work we demonstrate that at 77K and 8K temperatures strong bolometric effect also makes a significant contribution to the response. |
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1742-6588 |
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1301 |
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Elmanova, A.; Elmanov, I.; Komrakova, S.; Golikov, A.; Javadzade, J.; Vorobyev, V.; Bolshedvorskii, S.; Soshenko, V.; Akimov, A.; Kovalyuk, V.; Goltsman, G.; Arakelyan, S.; Evlyukhin, A.; Kalachev, A.; Naumov, A. |
Title |
Integration of nanodiamonds with NV-centers on optical silicon nitride structures |
Type |
Conference Article |
Year |
2019 |
Publication |
EPJ Web Conf. |
Abbreviated Journal |
EPJ Web Conf. |
Volume |
220 |
Issue |
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Pages |
03013 |
Keywords |
nanodiamonds, NV-centers, Si3N4 |
Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
In this work we had developed optical structures from silicon nitride for further integration of the nanodiamonds containing NV-centers with them. We have introduced method of the nanodiamonds solution application on the substrates. The work has practical meaning in nanophotonics sphere and in development of optical devices with single-photon sources. |
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2100-014X |
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1190 |
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Venediktov, I. O.; Elezov, M. S.; Prokhodtsov, A. I.; Kovalyuk, V. V.; An, P. P.; Golikov, A. D.; Shcherbatenko, M. L.; Sych, D. V.; Goltsman, G. N. |
Title |
Study of microheater’s phase modulation for on-chip Kennedy receiver |
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Conference Article |
Year |
2020 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1695 |
Issue |
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Pages |
012117 |
Keywords |
Mach-Zehnder interferometers, MZI |
Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
In this work we describe phase modulators for several Mach-Zehnder interferometers (MZI) on silicon nitride platform for telecomm wavelength (1550 nm). We obtained current-voltage and phase-voltage curves for these modulators. MZI are needed for experimental realisation of various quantum receivers that can distinguish weak coherent states of light with extremely low error. Thermo-optical (TO) modulation is ensured by microheaters on one of the arms of MZI, which enables the change of the refractive index of the material with temperature. This approach allows to apply the necessary voltage to the golden microheaters to obtain the required phase change. For the on-chip microheaters we demonstrate the dependence of the phase shift on the voltage applied to our on-chip microheaters. |
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1742-6588 |
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1179 |
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Jiang, Ling; Miao, Wei; Zhang, Wen; Li, Ning; Lin, Zhen Hui; Yao, Qi Jun; Shi, Sheng-Cai; Svechnikov, Sergey I.; Vakhtomin, Yury B.; Antipov, Sergey V.; Voronov, Boris M.; Kaurova, Natalia S.; Gol'tsman, Gregory N. |
Title |
Characterization of quasi-optical NbN phonon-cooled superconducting HEB mixers |
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Conference Article |
Year |
2006 |
Publication |
Proc. 17th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 17th Int. Symp. Space Terahertz Technol. |
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Pages |
55-58 |
Keywords |
NbN HEB mixers |
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In this paper, we thoroughly investigate the performance of quasi-optical NbN phonon-cooled superconducting hot-electron bolometer (HEB) mixers, cryogenically cooled by a close-cycled 4-K refrigerator at 500 GI-1z and 850 GHz. The uncorrected lowest receiver noise Abstract---In temperatures measured are 800 K at 500 CHz without anti-reflection coating, and 1000 K @ 850 GHz with a 50 11M thick Mylar anti-reflection coating. The dependence of receiver noise temperature on the critical current and bath temperature of HEB mixer is also investigated here. Lifetime of quasi-optical superconducting NbN HEB mixers of different volumes, room temperature resistances, and critical temperatures are thoroughly studied. Increased room temperature resistance with time over the initial resistance changes between 1 and 1.2, and the reduced critical current with time over the initial value fluctuates slightly around 0.7 for most HEB mixers even of different volumes, room temperature resistances, and critical temperatures. The critical current degrades sharply vvhile room temperature resistance varies over 1.25. |
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1435 |
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