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Author Kroug, M.; Yagoubov, P.; Gol'tsman, G.; Kollberg, E. url  openurl
  Title NbN quasioptical phonon cooled hot electron bolometric mixers at THz frequencies Type Conference Article
  Year 1997 Publication Inst. Phys. Conf. Ser. Abbreviated Journal Inst. Phys. Conf. Ser.  
  Volume 1 Issue Pages 405-408  
  Keywords NbN HEB mixers  
  Abstract  
  Address (down) Veldhoven  
  Corporate Author Thesis  
  Publisher Place of Publication Bristol Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0951-3248 ISBN Medium  
  Area Expedition Conference 3rd Eur. Conf. on Applied Superconductivity  
  Notes Approved no  
  Call Number Serial 1600  
Permanent link to this record
 
 
Author Ekström, H.; Kroug, M.; Belitsky, V.; Kollberg, E.; Olsson, H.; Goltsman, G.; Gershenzon, E.; Yagoubov, P.; Voronov, B.; Yngvesson, S. url  openurl
  Title Hot electron mixers for THz applications Type Conference Article
  Year 1996 Publication Proc. 30th ESLAB Abbreviated Journal Proc. 30th ESLAB  
  Volume Issue Pages 207-210  
  Keywords NbN HEB mixers  
  Abstract We have measured the noise performance of 35 A thin NbN HEB devices integrated with spiral antennas on antireflection coated silicon substrate lenses at 620 GHz. From the noise measurements we have determined a total conversion gain of the receiver of—16 dB, and an intrinsic conversion of about-10 dB. The IF bandwidth of the 35 A thick NbN devices is at least 3 GHz. The DSB receiver noise temperature is less than 1450 K. Without mismatch losses, which is possible to obtain with a shorter device, and with reduced loss from the beamsplitter, we expect to achieve a DSB receiver noise temperature of less ‘than 700 K.  
  Address (down) Noordwijk, Netherlands  
  Corporate Author Thesis  
  Publisher Place of Publication Editor Rolfe, E. J.; Pilbratt, G.  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference Submillimetre and Far-Infrared Space Instrumentation  
  Notes Approved no  
  Call Number Serial 1606  
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Author Merkel, H. F.; Yagoubov, P. A.; Kroug, M.; Khosropanah, P.; Kollberg, E. L.; Gol’tsman, G. N.; Gershenzon, E. M. url  doi
openurl 
  Title Noise temperature and absorbed LO power measurement methods for NbN phonon-cooled hot electron bolometric mixers at terahertz frequencies Type Conference Article
  Year 1998 Publication Proc. 28th European Microwave Conf. Abbreviated Journal Proc. 28th European Microwave Conf.  
  Volume 1 Issue Pages 294-299  
  Keywords NbN HEB mixers  
  Abstract In this paper the absorbed LO power requirements and the noise performance of NbN based phonon-cooled hot electron bolometric (HEB) quasioptical mixers are investigated for RF frequencies in the 0.55-1.1 range The minimal measured DSB noise temperatures are about 500 K at 640 GHz, 600 K at 750 GHz, 850 K at 910 GHz and 1250 K at 1.1 THz. The increase in noise temperature at 1.1THz is attributed to water absorption. The absorbed LO power is measured using a calorimetric approach. The results are subsequently corrected for lattice heating. These values are compared to results of a novel one dimensional hot spot mixer models and to a more traditional isotherm method which tends to underestimate the absorbed LO power for small bias powers. Typically a LO power between 50nW and 100nW is needed to pump the device to the optimal operating point.  
  Address (down)  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference 28th European Microwave Conference  
  Notes Approved no  
  Call Number Serial 1580  
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Author Yagoubov, P.; Kroug, M.; Merkel, H.; Kollberg, E.; Schubert, J.; Hubers, H. W.; Svechnikov, S.; Voronov, B.; Gol'tsman, G.; Wang, Z. url  openurl
  Title Hot electron bolometric mixers based on NbN films deposited on MgO substrates Type Conference Article
  Year 1999 Publication Inst. Phys. Conf. Ser. Abbreviated Journal Inst. Phys. Conf. Ser.  
  Volume 167 Issue Pages 687-690  
  Keywords  
  Abstract  
  Address (down)  
  Corporate Author Thesis  
  Publisher Place of Publication Barcelona, Spain Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference 4th Europ. Conf. on Appl. Superconductivity, Inst. Phys. Conf. Ser.  
  Notes Approved no  
  Call Number Serial 297  
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Author Kroug, M. openurl 
  Title Hot electron bolometric mixers for a quasi-optical terahertz receiver Type Book Whole
  Year 2001 Publication Abbreviated Journal  
  Volume Issue Pages  
  Keywords  
  Abstract  
  Address (down)  
  Corporate Author Thesis Ph.D. thesis  
  Publisher Place of Publication Chalmers University of Technology, Gothenburg, Sweden Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 310  
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