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Author (up) Jiang, Ling; Miao, Wei; Zhang, Wen; Li, Ning; Lin, Zhen Hui; Yao, Qi Jun; Shi, Sheng-Cai; Svechnikov, S. I.; Vakhtomin, Y. B.; Antipov, S. V.; Voronov, B. M.; Kaurova, N. S.; Gol'tsman, G. N.
Title Characterization of a quasi-optical NbN superconducting HEB mixer Type Journal Article
Year 2006 Publication IEEE Trans. Microwave Theory Techn. Abbreviated Journal IEEE Trans. Microwave Theory Techn.
Volume 54 Issue 7 Pages 2944-2948
Keywords NbN HEB mixers
Abstract In this paper, the performance of a quasi-optical NbN superconducting hot-electron bolometer (HEB) mixer, cryogenically cooled by a close-cycled 4-K refrigerator, is thoroughly investigated at 300, 500, and 850 GHz. The lowest receiver noise temperatures measured at the respective three frequencies are 1400, 900, and 1350 K, which can go down to 659, 413, and 529 K, respectively, after correcting the loss and associated noise contribution of the quasi-optical system before the measured superconducting HEB mixer. The stability of the quasi-optical superconducting HEB mixer is also investigated here. The Allan variance time measured with a local oscillator pumping at 500 GHz and an IF bandwidth of 110 MHz is 1.5 s at the dc-bias voltage exhibiting the lowest noise temperature and increases to 2.5 s at a dc bias twice that voltage.
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Language Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 0018-9480 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 1448
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Author (up) 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 Type Conference Article
Year 2006 Publication Proc. 17th Int. Symp. Space Terahertz Technol. Abbreviated Journal Proc. 17th Int. Symp. Space Terahertz Technol.
Volume Issue Pages 55-58
Keywords NbN HEB mixers
Abstract 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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Notes Approved no
Call Number Serial 1435
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Author (up) Karpov, A.; Miller, D.; Rice, F.; Stern, J. A.; Bumble, B.; LeDuc, H. G.; Zmuidzinas, J.
Title Development of 1.25 THz SIS mixer for Herschel Space Observatory Type Conference Article
Year 2006 Publication Proc. SPIE Abbreviated Journal
Volume 6275 Issue Pages 62751
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Corporate Author Thesis
Publisher Place of Publication Editor Zmuidzinas, Jonas; Holland, Wayne S.
Language Summary Language Original Title
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ISSN ISBN Medium
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Notes Approved no
Call Number RPLAB @ s @ Karpov_SIS_2006 Serial 401
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Author (up) Kenyon, M.; Day, P. K.; Bradford, C. M.; Bock, J. J.; Leduc, H. G.
Title Background-limited membrane-isolated TES bolometers for far-IR/submillimeter direct-detection spectroscopy Type Journal Article
Year 2006 Publication Nucl. Instr. & Meth. Phys. Res. A Abbreviated Journal
Volume 559 Issue Pages 456-458
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Notes Approved no
Call Number RPLAB @ s @ TES_NEP_1e_19 Serial 384
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Author (up) Kerman, A. J.; Dauler, E. A.; Keicher, W. E.; Yang, J. K. W.; Berggren, K. K.; Gol’tsman, G.; Voronov, B.
Title Kinetic-inductance-limited reset time of superconducting nanowire photon counters Type Journal Article
Year 2006 Publication Appl. Phys. Lett. Abbreviated Journal Appl. Phys. Lett.
Volume 88 Issue 11 Pages 111116 (1 to 3)
Keywords NbN SSPD, SNSPD
Abstract We investigate the recovery of superconducting NbN-nanowire photon counters after detection of an optical pulse at a wavelength of 1550nm, and present a model that quantitatively accounts for our observations. The reset time is found to be limited by the large kinetic inductance of these nanowires, which forces a tradeoff between counting rate and either detection efficiency or active area. Devices of usable size and high detection efficiency are found to have reset times orders of magnitude longer than their intrinsic photoresponse time.

The authors acknowledge D. Oates and W. Oliver (MIT Lincoln Laboratory), S.W. Nam, A. Miller, and R. Hadfield (NIST) and R. Sobolewski, A. Pearlman, and A. Verevkin (University of Rochester) for helpful discussions and technical assistance. This work made use of MIT’s shared scanning-electron-beam-lithography facility in the Research Laboratory of Electronics. This work is sponsored by the United States Air Force under Air Force Contract No. FA8721-05-C-0002. Opinions, interpretations, recommendations and conclusions are those of the authors and are not necessarily endorsed by the United States Government.
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-6951 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 1453
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Author (up) Kitaygorsky, Jennifer; Komissarov, I.; Jukna, A.; Sobolewski, Roman; Minaeva, O.; Kaurova, N.; Korneev, A.; Voronov, B.; Milostnaya, I.; Gol'Tsman, Gregory
Title Nanosecond, transient resistive state in two-dimensional superconducting stripes Type Abstract
Year 2006 Publication Proc. APS March Meeting Abbreviated Journal Proc. APS March Meeting
Volume Issue Pages H38.13
Keywords NbN stripes
Abstract We have observed, nanosecond-in-duration, transient voltage pulses, generated across two-dimensional (2-D) NbN stripes (width: 100--500 nm; thickness: 3.5--10 nm) of various lengths (1--500 μm), when the wires were completely isolated from the outside world, biased at currents close to the critical current, and kept at temperatures below the mean-field critical temperature Tco. In 2-D superconducting films, at temperatures below the Kosterlitz-Thouless transition, all vortices are bound and the resistance is zero. However, these vortices can get unbound when a large enough transport current is applied. The latter results in a transient resistive state, which manifests itself as spontaneous, 2.5--8-ns-long voltage pulses with the amplitude corresponding to the unbinding potential of a vortex pair. In our 100-nm-wide stripes, we have also observed the formation of phase slip centers (PSCs) at temperatures close to Tco, and a mixture of PSCs and unbound vortex-antivortex pairs at low temperatures.
Address Baltimore, MD
Corporate Author Thesis
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Notes Approved no
Call Number Serial 1454
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Author (up) Kooi, J. W.; Baselmans, J. J. A.; Baryshev, A.; Schieder, R.; Hajenius, M.; Gao, J.R.; Klapwijk, T. M.; Voronov, B.; Gol’tsman, G.
Title Stability of heterodyne terahertz receivers Type Journal Article
Year 2006 Publication J. Appl. Phys. Abbreviated Journal J. Appl. Phys.
Volume 100 Issue 6 Pages 064904 (1 to 9)
Keywords NbN HEB mixers
Abstract In this paper we discuss the stability of heterodyne terahertz receivers based on small volume NbN phonon cooled hot electron bolometers (HEBs). The stability of these receivers can be broken down in two parts: the intrinsic stability of the HEB mixer and the stability of the local oscillator (LO) signal injection scheme. Measurements show that the HEB mixer stability is limited by gain fluctuations with a 1∕f spectral distribution. In a 60MHz noise bandwidth this results in an Allan variance stability time of ∼0.3s. Measurement of the spectroscopic Allan variance between two intermediate frequency (IF) channels results in a much longer Allan variance stability time, i.e., 3s between a 2.5 and a 4.7GHz channel, and even longer for more closely spaced channels. This implies that the HEB mixer 1∕f noise is strongly correlated across the IF band and that the correlation gets stronger the closer the IF channels are spaced. In the second part of the paper we discuss atmospheric and mechanical system stability requirements on the LO-mixer cavity path length. We calculate the mixer output noise fluctuations as a result of small perturbations of the LO-mixer standing wave, and find very stringent mechanical and atmospheric tolerance requirements for receivers operating at terahertz frequencies.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0021-8979 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 1444
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Author (up) Koshelets, V. P.; Borisov, V. B.; Dmitriev, P. N.; Ermakov, A. B.; Filippenko, L. V.; Khudchenko, A. V.; Kiselev, O. S.; Lapitskaya, I. L.; Sobolev, A. S.; Torgashin, M. Yu.; Yagoubov, P. A.; Hoogeveen, R. W. M.
Title Integrated submillimeter receiver for TELIS Type Journal Article
Year 2006 Publication Joint International Workshop “Nanosensors and Arrays of Quantum Dots and Josephson Junctions for space applications”, 10th International Workshop “From Andreev Reflection to the Earliest Universe” Abbreviated Journal
Volume Issue Pages
Keywords SIR
Abstract
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Corporate Author Thesis
Publisher Place of Publication Bjorkliden, Kiruna, Sweden Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
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Notes Presentation Approved no
Call Number Serial 527
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Author (up) Koshelets, V. P.; Ermakov, A. B.; Filippenko, L. V.; Koryukin, O. V.; Khudchenko, A. V.; Sobolev, A. S.; Torgashin, M. Yu.; Yagoubov, P. A.; Hoogeveen, R. W. M.; Vreeling, W. J.; Wild, W.; Pylypenko, O. M.
Title Superconducting submm integrated receiver for TELIS Type Conference Article
Year 2006 Publication J. Phys.: Conf. Ser. Abbreviated Journal J. Phys.: Conf. Ser.
Volume 43 Issue Pages 1377-1380
Keywords SIR
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1742-6588 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 514
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Author (up) Koshelets, V. P.; Khudchenko, A. V.
Title Analysis of spectral characteristics of a superconducting integrated receiver Type Journal Article
Year 2006 Publication J. Communications Technol. Electron. Abbreviated Journal
Volume 51 Issue 5 Pages 596-603
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Notes Approved no
Call Number RPLAB @ s @ mix_SIR Serial 400
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