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Author Bell, Matthew; Sergeev, Andrei; Goltsman, Gregory; Bird, Jonathan; Verevkin, Aleksandr
Title Transition-edge sensors based on superconducting nanowires Type Abstract
Year 2006 Publication Proc. APS March Meeting Abbreviated Journal Proc. APS March Meeting
Volume Issue Pages B38.00001
Keywords NbN nanowire TES
Abstract We present our experimental study of superconducting NbN nanowire-based sensor. The responsivity of the sensor is strongly affected by the superconducting transition width of the nanostructure, which, in turn, is determined by the phase slip centers (PCSs) dynamics. The fluctuations and noise properties of the sensor are also discussed, as well as the devices' behavior at high magnetic fields. The ultimate performance of the sensor and prospects of the devices will be discussed, as well.
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Call Number Serial 1455
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Author McDonald, P.C.; Jaramillo, E.; Baudouy, B.
Title Thermal design of the CFRP support struts for the spatial framework of the Herschel Space Observatory Type Journal Article
Year 2006 Publication Cryogenics Abbreviated Journal Cryogenics
Volume 46 Issue 4 Pages 298-304
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ISSN 0011-2275 ISBN Medium
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Notes Approved no
Call Number RPLAB @ s @ Serial 442
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Author Gol'tsman, G.; Maslennikov, S.; Finkel, M.; Antipov, S.; Kaurova, N.; Grishina, E.; Polyakov, S.; Vachtomin, Y.; Svechnikov, S.; Smirnov, K.; Voronov, B.
Title Nanostructured ultrathin NbN film as a terahertz hot-electron bolometer mixer Type Conference Article
Year 2006 Publication Proc. MRS Abbreviated Journal Proc. MRS
Volume 935 Issue Pages 210 (1 to 6)
Keywords NbN HEB mixers
Abstract Planar spiral antenna coupled and directly lens coupled NbN HEB mixer structures are studied. An additional MgO buffer layer between the superconducting film and Si substrate is introduced. The buffer layer enables us to increase the gain bandwidth of a HEB mixer due to better acoustic transparency. The gain bandwidth is widened as NbN film thickness decreases and amounts to 5.2 GHz. The noise temperature of antenna coupled mixer is 1300 and 3100 K at 2.5 and 3.8 THz respectively. The structure and composition of NbN films is investigated by X-ray diffraction spectroscopy methods. Noise performance degradation at LO frequencies more than 3 THz is due to the use of a planar antenna and signal loss in contacts between the antenna and the sensitive NbN bridge. The mixer is reconfigured for operation at higher frequencies in a manner that receiver’s noise temperature is only 2300 K (3 times of quantum limit) at LO frequency of 30 THz.
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ISSN 0272-9172 ISBN Medium
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Notes Approved no
Call Number Serial 1440
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Author Hajenius, M.; Baselmans, J. J. A.; Baryshev, A.; Gao, J. R.; Klapwijk, T. M.; Kooi, J. W.; Jellema, W.; Yang, Z. Q.
Title Full characterization and analysis of a terahertz heterodyne receiver based on a NbN hot electron bolometer Type Journal Article
Year 2006 Publication J. Appl. Phys. Abbreviated Journal
Volume 100 Issue 7 Pages 074507
Keywords HEB
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ISSN 0021-8979 ISBN Medium
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Notes Approved no
Call Number RPLAB @ s @ Serial 385
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Author Rodriguez-Morales, F.; Zannoni, R.; Nicholson, J.; Fischetti, M.; Yngvesson, K. S.; Appenzeller, J.
Title Direct and heterodyne detection of microwaves in a metallic single wall carbon nanotube Type Journal Article
Year 2006 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 89 Issue 8 Pages 083502
Keywords carbon nanotube, GHz heterodyne detector, direct detector
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ISSN 0003-6951 ISBN Medium
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Notes Approved no
Call Number Serial 565
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