| Records |
| Author |
Svechnikov, S. I.; Finkel, M. I.; Maslennikov, S. N.; Vachtomin, Y. B.; Smirnov, K. V.; Seleznev, V. A.; Korotetskaya, Y. P.; Kaurova, N. S.; Voronov, B. M.; Gol’tsman, G. N. |
| Title |
Superconducting hot electron bolometer mixer for middle IR range |
Type  |
Conference Article |
| Year |
2006 |
Publication |
Proc. 16th Int. Crimean Microwave and Telecommunication Technology |
Abbreviated Journal |
Proc. 16th Int. Crimean Microwave and Telecommunication Technology |
| Volume |
2 |
Issue |
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Pages |
686-687 |
| Keywords |
IR NbN HEB mixer, detector, GaAs substrate |
| Abstract |
The developed directly lens coupled hot electron bolometer (HEB) mixer was based on 5 nm superconducting NbN deposited on GaAs substrate. The layout of the structure, including 30x20 mcm^2 active area coupled with a 50 Ohm coplanar line, was patterned by photolithography. The responsivity of the mixer was measured in a direct detection mode in the 25-64 THz frequency range. The noise performance of the mixer and the directivity of the receiver were investigated in a heterodyne mode. A 10.6 mum wavelength CW CO2 laser was utilized as a local oscillator. |
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no |
| Call Number |
4023440 |
Serial |
1297 |
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| Author |
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 |
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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Edition |
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| ISSN |
1742-6588 |
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no |
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Serial |
1301 |
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| Author |
Gayduchenko, I. A.; Fedorov, G. E.; Stepanova, T. S.; Titova, N.; Voronov, B. M.; But, D.; Coquillat, D.; Diakonova, N.; Knap, W.; Goltsman, G. N. |
| Title |
Asymmetric devices based on carbon nanotubes as detectors of sub-THz radiation |
Type |
Conference Article |
| Year |
2016 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
| Volume |
741 |
Issue |
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Pages |
012143 (1 to 6) |
| Keywords |
carbon nanotubes, CNT |
| Abstract |
Demand for efficient terahertz (THz) radiation detectors resulted in intensive study of the asymmetric carbon nanostructures as a possible solution for that problem. In this work, we systematically investigate the response of asymmetric carbon nanodevices to sub-terahertz radiation using different sensing elements: from dense carbon nanotube (CNT) network to individual CNT. We conclude that the detectors based on individual CNTs both semiconducting and quasi-metallic demonstrate much stronger response in sub-THz region than detectors based on disordered CNT networks at room temperature. We also demonstrate the possibility of using asymmetric detectors based on CNT for imaging in the THz range at room temperature. Further optimization of the device configuration may result in appearance of novel terahertz radiation detectors. |
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1742-6588 |
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no |
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Serial |
1336 |
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Seliverstov, S. V.; Rusova, A. A.; Kaurova, N. S.; Voronov, B. M.; Goltsman, G. N. |
| Title |
Attojoule energy resolution of direct detector based on hot electron bolometer |
Type |
Conference Article |
| Year |
2016 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
| Volume |
741 |
Issue |
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Pages |
012165 (1 to 5) |
| Keywords |
NbN HEB detector |
| Abstract |
We characterize superconducting antenna-coupled NbN hot-electron bolometer (HEB) for direct detection of THz radiation operating at a temperature of 9.0 K. At signal frequency of 2.5 THz, the measured value of the optical noise equivalent power is 2.0×10-13 W-Hz-0.5. The estimated value of the energy resolution is about 1.5 aJ. This value was confirmed in the experiment with pulsed 1.55-μm laser employed as a radiation source. The directly measured detector energy resolution is 2 aJ. The obtained risetime of pulses from the detector is 130 ps. This value was determined by the properties of the RF line. These characteristics make our detector a device-of-choice for a number of practical applications associated with detection of short THz pulses. |
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IOP Publishing |
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no |
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Seliverstov_2016 |
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1337 |
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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 |
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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no |
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Serial |
1350 |
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| Author |
Ryabchun, S.; Smirnov, A.; Pentin, I.; Vakhtomin, Yu.; Smirnov, K.; Kaurova, N.; Voronov, B.; Goltsman, G. |
| Title |
Superconducting single photon detector integrated with optical cavity |
Type |
Conference Article |
| Year |
2011 |
Publication |
Proc. MLPLIT |
Abbreviated Journal |
Proc. MLPLIT |
| Volume |
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Issue |
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Pages |
143-145 |
| Keywords |
NbN SSPD, cavity |
| Abstract |
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| Address |
Suzdal / Vladimir (Russia) |
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| Publisher |
Modern laser physics and laser-information technologies for science and manufacture |
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1st international russian-chinese conference / youthschool-workshop |
| Notes |
September 23-28, 2011 |
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no |
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Serial |
1385 |
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Maslennikova, A.; Larionov, P.; Ryabchun, S.; Smirnov, A.; Pentin, I.; Vakhtomin, Yu.; Smirnov, K.; Kaurova, N.; Voronov, B.; Goltsman, G. |
| Title |
Noise equivalent power and dynamic range of NBN hot-electron bolometers |
Type |
Conference Article |
| Year |
2011 |
Publication |
Proc. MLPLIT |
Abbreviated Journal |
Proc. MLPLIT |
| Volume |
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Pages |
146-148 |
| Keywords |
NbN HEB |
| Abstract |
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| Address |
Suzdal / Vladimir (Russia) |
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Modern laser physics and laser-information technologies for science and manufacture |
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Conference |
1st international russian-chinese conference / youthschool-workshop |
| Notes |
September 23-28, 2011 |
Approved |
no |
| Call Number |
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Serial |
1386 |
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| Author |
Korneev, A.; Korneeva, Y.; Florya, I.; Voronov, B.; Goltsman, G. |
| Title |
Spectral sensitivity of narrow strip NbN superconducting single-photon detector |
Type |
Conference Article |
| Year |
2011 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
8072 |
Issue |
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Pages |
80720G (1 to 9) |
| Keywords |
NbN SSPD, SNSPD |
| Abstract |
Superconducting single-photon detector (SSPD) is patterned from 4-nm-thick NbN film deposited on sapphire substrate as a 100-nm-wide strip. Due to its high detection efficiency, low dark counts, and picosecond timing jitter SSPD has become a competitor to the InGaAs avalanche photodiodes at 1550 nm and longer wavelengths. Although the SSPD is operated at liquid helium temperature its efficient single-mode fibre coupling enabled its usage in many applications ranging from single-photon sources research to quantum cryptography. In our strive to increase the detection efficiency at 1550 nm and longer wavelengths we developed and fabricated SSPD with the strip almost twice narrower compared to the standard 100 nm. To increase the voltage response of the device we utilized cascade switching mechanism: we connected 50-nm-wide and 10-μm-long strips in parallel covering the area of 10 μmx10 μm. Absorption of a photon breaks the superconductivity in a strip leading to the bias current redistribution between other strips followed their cascade switching. As the total current of all the strips about is 1 mA by the order of magnitude the response voltage of such an SSPD is several times higher compared to the traditional meander-shaped SSPDs. In middle infrared (about 3 μm wavelength) these devices have the detection efficiency several times higher compared to the traditional SSPDs. |
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SPIE |
Place of Publication |
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Editor |
Fiurásek, J.; Prochazka, I. |
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Photon Counting Applications, Quantum Optics, and Quantum Information Transfer and Processing III |
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Approved |
no |
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Serial |
1387 |
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| Author |
Okunev, O.; Chulkova, G.; Milostnaya, I.; Antipov, A.; Smirnov, K.; Morozov, D.; Korneev, A.; Voronov, B.; Gol’tsman, G.; Slysz, W.; Wegrzecki, M.; Bar, J.; Grabiec, P.; Górska, M.; Pearlman, A.; Cross, A.; Kitaygorsky, J.; Sobolewski, R. |
| Title |
Registration of infrared single photons by a two-channel receiver based on fiber-coupled superconducting single-photon detectors |
Type |
Conference Article |
| Year |
2008 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
7009 |
Issue |
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Pages |
70090V (1 to 8) |
| Keywords |
SSPD, SNSPD, single-photon detectors, superconductors, superconducting nanost |
| Abstract |
Single-photon detectors (SPDs) are the foundation of all quantum communications (QC) protocols. Among different classes of SPDs currently studied, NbN superconducting SPDs (SSPDs) are established as the best devices for ultrafast counting of single photons in the infrared (IR) wavelength range. The SSPDs are nanostructured, 100 μm2 in total area, superconducting meanders, patterned by electron lithography in ultra-thin NbN films. Their operation has been explained within a phenomenological hot-electron photoresponse model. We present the design and performance of a novel, two-channel SPD receiver, based on two fiber-coupled NbN SSPDs. The receivers have been developed for fiber-based QC systems, operational at 1.3 μm and 1.55 μm telecommunication wavelengths. They operate in the temperature range from 4.2 K to 2 K, in which the NbN SSPDs exhibit their best performance. The receiver unit has been designed as a cryostat insert, placed inside a standard liquid-heliumstorage dewar. The input of the receiver consists of a pair of single-mode optical fibers, equipped with the standard FC connectors and kept at room temperature. Coupling between the SSPD and the fiber is achieved using a specially designed, precise micromechanical holder that places the fiber directly on top of the SSPD nanostructure. Our receivers achieve the quantum efficiency of up to 7% for near-IR photons, with the coupling efficiency of about 30%. The response time was measured to be < 1.5 ns and it was limited by our read-out electronics. The jitter of fiber-coupled SSPDs is < 35 ps and their dark-count rate is below 1s-1. The presented performance parameters show that our single-photon receivers are fully applicable for quantum correlation-type QC systems, including practical quantum cryptography. |
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SPIE |
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Editor |
Sukhoivanov, I.A.; Svich, V.A.; Shmaliy, Y.S. |
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no |
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Serial |
1413 |
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| Author |
Zhang, W.; Li, N.; Jiang, L.; Ren, Y.; Yao, Q.-J.; Lin, Z.-H.; Shi, S.-C.; Voronov, B. M.; Gol’tsman, G. N. |
| Title |
Dependence of noise temperature of quasi-optical superconducting hot-electron bolometer mixers on bath temperature and optical-axis displacement |
Type |
Conference Article |
| Year |
2008 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
6840 |
Issue |
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Pages |
684007 (1 to 8) |
| Keywords |
NbN HEB mixers, noise temperature, LO power |
| Abstract |
It is known that the increase of bath temperature results in the decrease of critical current of superconducting hot-electron bolometer (HEB) mixers owing to the depression of superconductivity, thus leading to the degradation of the mixer’s sensitivity. Here we report our study on the effect of bath temperature on the heterodyne mixing performance of quasi-optical superconducting NbN HEB mixers incorporated with a two-arm log-spiral antenna. The correlation between the bath temperature, critical current, LO power requirement and noise temperature is investigated at 0.5 THz. Furthermore, the heterodyne mixing performance of quasi-optical superconducting NbN HEB mixers is examined while there is an optical-axis displacement between the center of the extended hemispherical silicon lens and the superconducting NbN HEB device, which is placed on the back of the lens. Detailed experimental results and analysis are presented. |
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Thesis |
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Spie |
Place of Publication |
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Editor |
Zhang, C.; Zhang, X.-C. |
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Expedition |
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Conference |
Terahertz Photonics |
| Notes |
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Approved |
no |
| Call Number |
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Serial |
1415 |
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