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Author |
Sidorova, M.; Semenov, A.; Hübers, H.-W.; Kuzmin, A.; Doerner, S.; Ilin, K.; Siegel, M.; Charaev, I.; Vodolazov, D. |
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Title |
Timing jitter in photon detection by straight superconducting nanowires: Effect of magnetic field and photon flux |
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Journal Article |
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Year |
2018 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
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Volume |
98 |
Issue |
13 |
Pages |
134504 (1 to 14) |
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Keywords |
SNSPD, NbN namowires |
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Abstract |
We studied the effects of the external magnetic field and photon flux on timing jitter in photon detection by straight superconducting NbN nanowires. At two wavelengths 800 and 1560 nm, statistical distribution in the appearance times of photon counts exhibits Gaussian shape at small times and an exponential tail at large times. The characteristic exponential time is larger for photons with smaller energy and increases with external magnetic field while variations in the Gaussian part of the distribution are less pronounced. Increasing photon flux drives the nanowire from the discrete quantum detection regime to the uniform bolometric regime that averages out fluctuations of the total number of nonequilibrium electrons created by the photon and drastically reduces jitter. The difference between standard deviations of Gaussian parts of distributions for these two regimes provides the measure for the strength of electron-number fluctuations; it increases with the photon energy. We show that the two-dimensional hot-spot detection model explains qualitatively the effect of magnetic field. |
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2469-9950 |
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1842 |
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Mair, U.; Suttywong, N.; Hübers, H.-W.; Semenov, A. D.; Richter, H.; Wagner, G.; Birk, M. |
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Title |
Development of 1.8 THz receiver for the TELIS instrument |
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Conference Article |
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Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
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Göteborg, Sweden |
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RPLAB @ s @ qo_TELIS_1p8_THz |
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364 |
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Kroug, M.; Cherednichenko, S.; Choumas, M.; Merkel, H.; Kollberg, E.; Hübers, H.-W.; Richter, H.; Loudkov, D.; Voronov, B.; Gol'Tsman, G. |
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Title |
HEB quasi-optical heterodyne receiver for THz frequencies |
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Conference Article |
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Year |
2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
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244-252 |
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Keywords |
HEB mixer, NbN, MgO, conversion gain bandwidth, noise temperature |
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San Diego, CA, USA |
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319 |
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Hübers, H.-W.; Semenov, A. D.; Richter, H.; Schubert, J.; Hadjiloucas, S.; Bowen, J. W.; Gol'tsman, G.; Voronov, B. M.; Gershenzon, E. M. |
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Title |
Antenna pattern of the quasi-optical hot-electron bolometric mixer at terahertz frequencies |
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Conference Article |
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Year |
2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 12th Int. Symp. Space Terahertz Technol. |
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286-296 |
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Keywords |
NbN HEB mixers |
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San Diego, CA, USA |
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323 |
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Il'in, K.; Siegel, M.; Semenov, A.; Engel, A.; Hübers, H.-W.; Hollmann, E.; Gol'tsman, G.; Voronov, B. |
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Title |
Thickness dependence of superconducting properties of ultrathin Nb and NbN films |
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Conference Article |
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2004 |
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AKF-Frühjahrstagung |
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Nb, NbN films, has potential plagiarism |
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Berlin-Adlershof |
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1503 |
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Author |
Semenov, A.; Richter, H.; Hübers, H.-W.; Smirnov, K.; Voronov, B.; Gol'tsman, G. |
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Title |
Development of terahertz superconducting hot-electron bolometer mixers |
Type |
Conference Article |
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Year |
2003 |
Publication |
Proc. 6th European Conf. Appl. Supercond. |
Abbreviated Journal |
Proc. 6th European Conf. Appl. Supercond. |
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Volume |
181 |
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Pages |
2960-2965 |
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Keywords |
NbN HEB mixers |
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Abstract |
We present recent results of the development of phonon cooled hot-electron bolometric (HEB) mixers for airborne and balloon borne terahertz heterodyne receivers. Three iomportant issues have been addresses: the quality of NbN films the HEB mixers were made from, the spectral properties of the HEB mixers and the local oscillator power required for optical operation. Studies with an atomic force microscope indicate, that the performance of the HEB mixer might have been effected by the microstructure of the NbN film. Antenna gain and noise temperature were investigated at terahertz frequencies for a HEB embedded in either log-spiral or twin-slot feed antenna. Comparison suggests that at frequencies above 3 THz the spiral feed provides better overall performance. At 1.6 THz, a power of 2.5 µW was required from the local oscillator for optimal operation of the HEB mixer. |
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Sorrento, Italy |
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0750309814, 978-0750309813 |
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1505 |
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Author |
Semenov, A. D.; Hübers, H.-W.; Gol’tsman, G. N.; Smirnov, K. |
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Title |
Superconducting quantum detector for astronomy and X-ray spectroscopy |
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Conference Article |
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2002 |
Publication |
Proc. Int. Workshop on Supercond. Nano-Electronics Devices |
Abbreviated Journal |
Proc. Int. Workshop on Supercond. Nano-Electronics Devices |
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201-210 |
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NbN SSPD, SNSPD, SQD, superconducting quantum detectors, X-ray spectroscopy |
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We propose the novel concept of ultra-sensitive energy-dispersive superconducting quantum detectors prospective for applications in astronomy and X-ray spectroscopy. Depending on the superconducting material and operation conditions, such detector may allow realizing background limited noise equivalent power 10−21 W Hz−1/2 in the terahertz range when exposed to 4-K background radiation or counting of 6-keV photon with almost 10—4 energy resolution. Planar layout and relatively simple technology favor integration of elementary detectors into a detector array. |
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Naples, Italy |
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Springer |
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Boston, MA |
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Pekola, J.; Ruggiero, B.; Silvestrini, P. |
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978-1-4615-0737-6 |
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International Workshop on Superconducting Nano-Electronics Devices, May 28-June 1, 2001 |
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Call Number |
semenov2002superconducting |
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1525 |
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Hübers, H.-W.; Semenov, A.; Richter, H.; Birk, M.; Krocka, M.; Mair, U.; Smirnov, K.; Gol’tsman, G.; Voronov, B. |
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Title |
Terahertz Heterodyn Receiver with a hot-electron bolometer mixer |
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Conference Article |
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2002 |
Publication |
Far-IR, Sub-mm & MM Detector Technology Workshop |
Abbreviated Journal |
Far-IR, Sub-mm & MM Detector Technology Workshop |
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Pages |
3-24 |
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Keywords |
NbN HEB mixers |
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Abstract |
During the past decade major advances have been made regarding low noise mixers for terahertz (THz) heterodyne receivers. State of the art hot-electron-bolometer (HEB) mixers have noise temperatures close to the quantum limit and require less than a µW power from the local oscillator (LO). The technology is now at a point where the performance of a practical receiver employing such mixer, rather than the figures of merit of the mixer itself, are of major concern. We have incorporated a phonon-cooled NbN HEB mixer in a 2.5 THz heterodyne receiver and investigated the performance of the receiver. This yields important information for the development of heterodyne receivers such as GREAT (German receiver for astronomy at THz frequencies aboard SOFIA) [1] and TELIS (Terahertz limb sounder), a balloon borne heterodyne receiver for atmospheric research [2]. Both are currently under development at DLR. |
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NASA |
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Wolf, U.; Farhoomand, J.; McCreight, C.R. |
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NASA CP |
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Volume: 211408 |
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1537 |
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Author |
Semenov, A.; Hübers, H.-W.; Engel, A.; Gol’tsman, G. |
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Title |
Superconducting quantum detector for far infrared astronomy |
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Conference Article |
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2002 |
Publication |
Far-IR, Sub-mm & MM Detector Technology Workshop |
Abbreviated Journal |
Far-IR, Sub-mm & MM Detector Technology Workshop |
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3-49 |
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SQD |
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We present the concept of the superconducting quantum detector for astronomy. Response to a single absorbed photon appears due to successive formation of a normal spot and phase-slip-centres in a narrow strip carrying sub-critical supercurrent. The detector simultaneously has a moderate energy resolution and a variable cut-off wavelength depending on both the material used and operation conditions. We simulated performance of the background-limited direct detector having the 100-micrometer cut-off wavelength. Low dark count rate will allow to realise 10-21 W Hz-1/2 noise equivalent power at 4 K background radiation. The detection mechanism provides a moderate 1/20 energy resolution at 50-micrometer wavelength. |
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NASA |
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Wolf, J.; Farhoomand, J.; McCreight, C.R. |
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NASA CP |
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Volume: 211408 |
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1538 |
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Author |
Yagoubov, P.; Hübers, H.-W.; Gol’tsman, G.; Semenov, A.; Gao, J.; Hoogeveen, R.; de Graauw, T.; Birk, M.; Selig, A.; de Korte, P. |
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Title |
Hot-electron bolometer mixers – technology for far-infrared heterodyne instruments in future atmospheric chemistry missions |
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Conference Article |
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Year |
2001 |
Publication |
Proc. 3rd Int. Symp. Submillimeter Wave Earth Observation From Space |
Abbreviated Journal |
Proc. 3rd Int. Symp. Submillimeter Wave Earth Observation From Space |
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57-69 |
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HEB mixers |
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Delmenhorst |
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Logos-Verlag |
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Buehler, S.; Berlin |
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3-89722-700-2 |
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International Symposium on Submillimeter Wave Earth Observation from Space, ISSMWEOS01 |
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1549 |
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