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Author |
Gershenzon, E. M.; Gol'tsman, G. N.; Karasik, B. S.; Lugovaya, G. Ya.; Serebryakova, N. A.; Chinkova, E. V. |
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Title |
Infrared radiation detectors on the base of electron heating in resistive state films from traditional superconducing materials |
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Journal Article |
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Year |
1992 |
Publication |
Sverkhprovodimost': Fizika, Khimiya, Tekhnika |
Abbreviated Journal |
Sverkhprovodimost': Fizika, Khimiya, Tekhnika |
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Volume |
5 |
Issue |
6 |
Pages |
1129-1140 |
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Keywords |
IR HEB detectors |
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Abstract |
Characteristics of infrared radiation detectors based on electron heating in thin superconducting films transformed at T ≤ Tc to a resistive state by transport current and, if necessary, by magnetic field are investigated. A comparison is made of the characteristics of the detectors fabricated of different materials: aluminium, niobium, Mo0.5Re0.5. Some devices with different topology of the reception area are considered. Electron heating detectors are comparable by their sensitivity with superconducting bolometers, but differ in a high fast-response. |
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Russian |
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0131-5366 |
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1673 |
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Author |
Semenov, A. D.; Sergeev, A. V.; Kouminov, P.; Goghidze, I. G.; Heusinger, M. A.; Nebosis, R. S.; Gol'tsman, G. N.; Gershenzon, E. M.; Renk, K. F. |
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Title |
Transparency of YBCO film/substrate interfaces for thermal phonons determined by photoresponse measurements |
Type |
Conference Article |
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Year |
1993 |
Publication |
Proc. 1st European Conf. on Appl. Supercond. |
Abbreviated Journal |
Proc. 1st European Conf. on Appl. Supercond. |
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Volume |
2 |
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Pages |
1443-1446 |
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Keywords |
YBCO HTS detectors |
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Abstract |
Direct measurements of the thermal boundary resistance were performed by means of the stationary method. In this approach the temperature of an electrically heated film is controlled by its dc resistance while an additional film on the same substrate is used as a thermometer monitoring substrate temperature. The temperature field in the substrate is then calculated to deduce the Kapitza temperature step at the interface between the heated strip and the substrate. The main statement of all afore-said papers is that experimental values of the thermal boundary resistance are too large to be explained by the acoustic mismatch model. In this paper we investigate transparency of YBaCuO film/substrate interfaces for thermal phonons by means of photoresponse measurements. We show that our data are in reasonable agreement with the acoustic mismatch theory. |
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Freyhardt, H. C. |
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3-88355-197-X |
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1st European conference on applied superconductivity |
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1661 |
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Author |
Voronov, B. M.; Gershenzon, E. M.; Gol'tsman, G. N.; Gubkina, T. O.; Semash, V. D. |
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Title |
Superconductive properties of ultrathin NbN films on different substrates |
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Journal Article |
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Year |
1994 |
Publication |
Sverkhprovodimost': Fizika, Khimiya, Tekhnika |
Abbreviated Journal |
Sverkhprovodimost': Fizika, Khimiya, Tekhnika |
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Volume |
7 |
Issue |
6 |
Pages |
1097-1102 |
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Keywords |
NbN films |
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Abstract |
A study was made on dependence of surface resistance, critical temperature and width of superconducting transition on application temperature and thickness of NbN films, which varied within the range of 3-10 nm. Plates of sapphire, fused and monocrystalline quartz, MgO, as well as Si and silicon oxide were used as substrates. NbN films with 160 μθ·cm specific resistance and 16.5 K (Tc) critical temperature were obtained on sapphire substrates. Intensive growth of ΔTc was noted for films, applied on fused quartz, with increase of precipitation temperature. This is explained by occurrence of high tensile stresses in NbN films, caused by sufficient difference of thermal coefficients of expansion of NbN and quartz. |
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Russian |
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0131-5366 |
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Сверхпроводниковые свойства ультратонких пленок NbN на различных подложках |
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1631 |
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Author |
Slysz, W.; Wegrzecki, M.; Papis, E.; Gol'tsman, G. N.; Verevkin, A.; Sobolewski, R. |
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Title |
A method of optimization of the NbN superconducting single-photon detector |
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Miscellaneous |
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2004 |
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INIS |
Abbreviated Journal |
INIS |
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36 |
Issue |
27 |
Pages |
1-2 |
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Keywords |
NbN SSPD, SNSPD |
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5-th International Symposium Ion Implantation and Other Applications of Ions and Electrons, ION |
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Notes |
Reference num. 36060124 |
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1485 |
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Slysz, W.; Wegrzecki, M.; Bar, J.; Grabiec, P.; Gol'tsman, G. N.; Verevkin, M.; Sobolewski, R. |
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Title |
NbN superconducting single-photon detectors coupled with a communication fiber |
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Miscellaneous |
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2004 |
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Abbreviated Journal |
INIS |
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37 |
Issue |
2 |
Pages |
1-2 |
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Keywords |
NbN SSPD, SNSPD |
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Stare Jablonki, Poland |
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8-th Electron Technology Conference ELTE |
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no |
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1486 |
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Author |
Zhang, Wen; Li, Ning; Jiang, Ling; Miao, Wei; Lin, Zhen-Hui; Yao, Qi-Jun; Shi, Sheng-Cai; Chen, Jian; Wu, Pei-Heng; Svechnikov, S. I.; Vachtomin, Y. B.; Antipov, S. V.; Voronov, B. M.; Gol'tsman, G. N. |
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Title |
Noise behaviour of a THz superconducting hot-electron bolometer mixer |
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Journal Article |
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Year |
2007 |
Publication |
Chinese Phys. Lett. |
Abbreviated Journal |
Chinese Phys. Lett. |
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Volume |
24 |
Issue |
6 |
Pages |
1778-1781 |
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Keywords |
NbN HEB mixers |
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A quasi-optical superconducting NbN hot-electron bolometer (HEB) mixer is measured in the frequency range of 0.5–2.5 THz for understanding of the frequency dependence of noise temperature of THz coherent detectors. It has been found that noise temperature increasing with frequency is mainly due to the coupling loss between the quasi-optical planar antenna and the superconducting HEB bridge when taking account of non-uniform distribution of high-frequency current. With the coupling loss corrected, the superconducting HEB mixer demonstrates a noise temperature nearly independent of frequency. |
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0256-307X |
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1430 |
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Author |
Il'in, K. S.; Verevkin, A. A.; Gol'tsman, G. N.; Sobolewski, R. |
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Title |
Infrared hot-electron NbN superconducting photodetectors for imaging applications |
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Journal Article |
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Year |
1999 |
Publication |
Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
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Volume |
12 |
Issue |
11 |
Pages |
755-758 |
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Keywords |
NbN SSPD, SNSPD |
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Abstract |
We report an effective quantum efficiency of 340, responsivity >200 A W-1 (>104 V W-1) and response time of 27±5 ps at temperatures close to the superconducting transition for NbN superconducting hot-electron photodetectors (HEPs) in the near-infrared and optical ranges. Our studies were performed on a few nm thick NbN films deposited on sapphire substrates and patterned into µm-size multibridge detector structures, incorporated into a coplanar transmission line. The time-resolved photoresponse was studied by means of subpicosecond electro-optic sampling with 100 fs wide laser pulses. The quantum efficiency and responsivity studies of our photodetectors were conducted using an amplitude-modulated infrared beam, fibre-optically coupled to the device. The observed picosecond response time and the very high efficiency and sensitivity of the NbN HEPs make them an excellent choice for infrared imaging photodetectors and input optical-to-electrical transducers for superconducting digital circuits. |
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0953-2048 |
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1562 |
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Author |
Rönnung, F.; Cherednichenko, S.; Winkler, D.; Gol'tsman, G. N. |
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A nanoscale YBCO mixer optically coupled with a bow tie antenna |
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Journal Article |
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Year |
1999 |
Publication |
Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
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Volume |
12 |
Issue |
11 |
Pages |
853-855 |
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Keywords |
YBCO HTS HEB mixers |
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The bolometric response of YBa2Cu3O7-δ(YBCO) hot-electron bolometers (HEBs) to near-infrared radiation was studied. Devices were fabricated from a 50 nm thick film and had in-plane areas of 10 × 10 µm2, 2 × 0.2 µm2, 1 × 0.2µm2 and 0.5 × 0.2 µm2. We found that nonequilibrium phonons cool down more effectively for the bolometers with smaller area. For the smallest bolometer the bolometric component in the response is 10 dB less than for the largest one. |
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0953-2048 |
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1563 |
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Author |
Lipatov, A.; Okunev, O.; Smirnov, K.; Chulkova, G.; Korneev, A.; Kouminov, P.; Gol'tsman, G.; Zhang, J.; Slysz, W.; Verevkin, A.; Sobolewski, R. |
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An ultrafast NbN hot-electron single-photon detector for electronic applications |
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Journal Article |
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Year |
2002 |
Publication |
Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
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Volume |
15 |
Issue |
12 |
Pages |
1689-1692 |
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Keywords |
NbN SSPD, SNSPD, QE, jitter, dark counts |
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Abstract |
We present the latest generation of our superconducting single-photon detector (SPD), which can work from ultraviolet to mid-infrared optical radiation wavelengths. The detector combines a high speed of operation and low jitter with high quantum efficiency (QE) and very low dark count level. The technology enhancement allows us to produce ultrathin (3.5 nm thick) structures that demonstrate QE hundreds of times better, at 1.55 μm, than previous 10 nm thick SPDs. The best, 10 × 10 μm2, SPDs demonstrate QE up to 5% at 1.55 μm and up to 11% at 0.86 μm. The intrinsic detector QE, normalized to the film absorption coefficient, reaches 100% at bias currents above 0.9 Ic for photons with wavelengths shorter than 1.3 μm. |
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0953-2048 |
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1533 |
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Author |
Gol'tsman, G. N.; Semenov, A. D.; Gousev, Y. P.; Zorin, M. A.; Gogidze, I. G.; Gershenzon, E. M.; Lang, P. T.; Knott, W. J.; Renk, K. F. |
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Title |
Sensitive picosecond NbN detector for radiation from millimetre wavelengths to visible light |
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Journal Article |
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Year |
1991 |
Publication |
Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
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Volume |
4 |
Issue |
9 |
Pages |
453-456 |
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Keywords |
NbN HEB detectors |
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The authors report on the application of a broad-band NbN film detector which has high sensitivity and picosecond response time for detection of radiation from millimetre wavelengths to visible light. From a study of amplitude modulated radiation of backward-wave tubes and picosecond pulses from gas and solid state lasers at wavelengths between 2 mm and 0.53 mu m, they found a detectivity of 1010 W-1 cm Hz-1/2 and a response time of less than 50 ps at T=10 K. The characteristics were provided by using a 150 AA thick NbN film patterned into a structure of micron strips. According to the proposed detection mechanism, namely electron heating, they expect an intrinsic response time of approximately 20 ps at the same temperature. |
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0953-2048 |
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242 |
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