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Author Gundlach, K. H.; Schicke, M. openurl 
  Title SIS and bolometer mixers for terahertz frequencies Type Journal Article
  Year 2000 Publication Supercond. Sci. Technol Abbreviated Journal  
  Volume 13 Issue Pages 181-187  
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  Call Number (down) RPLAB @ s @ sis_Gundlach_2000 Serial 302  
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Author Кардашев, Н. С.; Андреянов, В. В.; Буякас, В. И.; Виноградов, И. С.; Гвамичева, А. С.; Котик, А. И.; Курт, В. Г.; Лазарева, Г. С.; Миронова, Е. Н.; Мышонкова, Н. В.; Слыш, В. И.; Трубников, А. Г.; Троитский, В. Ф.; Пуряев, Д. Т.; Юсюкин, В. И. openurl 
  Title Проект Миллиметрон Type Journal Article
  Year 2000 Publication Труды ФИАН им. Лебедева Abbreviated Journal  
  Volume 228 Issue Pages  
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  Notes Approved no  
  Call Number (down) RPLAB @ s @ MILLIMETRON_first_rus Serial 309  
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Author Kardashev, N. S.; Andreyanov, V. V.; Buyakas, V. I.; Vinogradov, I. S.; Gvamichava, A. S.; Kotik, A. I.; Kurt, V. G.; Lazareva, G. S.; Mironova, E. N.; Myshonkova, N. V.; Slysh, V. I.; Trubnikov, A. G.; Troitskiy, V. F.; Puryaev, D. T.; Usyukin, V. I. openurl 
  Title The Millimetron project Type Conference Article
  Year 2000 Publication Proc. Lebedev Phys. Institute Abbreviated Journal  
  Volume 228 Issue Pages  
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  Notes Approved no  
  Call Number (down) RPLAB @ s @ MILLIMETRON_first Serial 308  
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Author Kawamura, Jonathan; Blundell, Raymond; Tong, C.-Y. Edward; Papa, D. Cosmo; Hunter, Todd R.; Paine, Scot.t. N.; Patt, Ferdinand; Gol'tsman, Gregory; Cherednichenko, Sergei; Voronov, Boris; Gershenzon, Eugene doi  openurl
  Title Superconductive hot-electron bolometer mixer receiver for 800 GHz operation Type Miscellaneous
  Year 2000 Publication IEEE Trans. Microwave Theory and Techniques Abbreviated Journal IEEE Trans. Microwave Theory and Techniques  
  Volume 48 Issue 4 Pages 683-689  
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  Notes Approved no  
  Call Number (down) RPLAB @ s @ Kawamura_superconductivehot-electron Serial 424  
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Author Hansen, Lene; Jørgensen, H.E.; Nørgaard-Nielsen, Hans Ulrik; Pedersen, Kenneth; Goudfrooij, P.; Linden-Vornle, M.J.D. openurl 
  Title ISO far-infrared observations of rich galaxy clusters III. Abell 2029, Abell 2052, Abell 2142 Type Journal Article
  Year 2000 Publication Astron. Astrophys. Abbreviated Journal A&A  
  Volume 362 Issue 1 Pages 133-137  
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  Abstract A sample of five rich galaxy clusters has been mapped by ISO at 60 μm, 100 μm, 135 μm, and 200 μm using the PHT-C camera. In previous papers Abell 2670 and Sersic 159-03 were discussed. Here we present the results for Abell 2029, Abell 2052, and Abell 2142. The conclusion of the survey is that the relatively small fields (approximate to 60 square are minutes) are structured with filaments or superpositions of point sources. In some cases point sources (approximate to 0.1 Jy) can be identified with cluster galaxies. An attempt to demonstrate infrared emission from dust in the cooling flows (due to star formation) was inconclusive.  
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  Notes Approved no  
  Call Number (down) RPLAB @ s @ Serial 456  
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Author Kawamura, J.; Blundell, R.; Tong, C.-Y. E.; Papa, D. C.; Hunter, T. R.; Paine, S. N.; Patt, F.; Gol'tsman, G.; Cherednichenko, S.; Voronov, B.; Gershenzon, E. url  doi
openurl 
  Title Superconductive hot-electron-bolometer mixer receiver for 800-GHz operation Type Journal Article
  Year 2000 Publication IEEE Trans. Microw. Theory Techn. Abbreviated Journal IEEE Trans. Microw. Theory Techn.  
  Volume 48 Issue 4 Pages 683-689  
  Keywords NbN HEB mixers, LO power, local oscillator power, saturation, linearity, dynamic range  
  Abstract In this paper, we describe a superconductive hot-electron-bolometer mixer receiver designed to operate in the partially transmissive 350-μm atmospheric window. The receiver employs an NbN thin-film microbridge as the mixer element, in which the main cooling mechanism of the hot electrons is through electron-phonon interaction. At a local-oscillator frequency of 808 GHz, the measured double-sideband receiver noise temperature is TRX=970 K, across a 1-GHz intermediate-frequency bandwidth centered at 1.8 GHz. We have measured the linearity of the receiver and the amount of local-oscillator power incident on the mixer for optimal operation, which is PLO≈1 μW. This receiver was used in making observations as a facility instrument at the Heinrich Hertz Telescope, Mt. Graham, AZ, during the 1998-1999 winter observing season.  
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  ISSN 0018-9480 ISBN Medium  
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  Notes Approved no  
  Call Number (down) RPLAB @ lobanovyury @ Serial 573  
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Author Hoevers, H. F. C.; Bento, A. C.; Bruijn, M. P.; Gottardi, L.; Korevaar, M. A. N.; Mels, W. A.; de Korte, P. A. J. openurl 
  Title Thermal fluctuation noise in a voltage biased superconducting transition edge thermometer Type Journal Article
  Year 2000 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.  
  Volume 77 Issue 26 Pages 4421-4424  
  Keywords TES; bolometer; thermal fluctuation noise; TFN  
  Abstract The current noise at the output of a microcalorimeter with a voltage biased superconducting transition edge thermometer is studied in detail. In addition to the two well-known noise sources: thermal fluctuation noise from the heat link to the bath and Johnson noise from the resistive thermometer, a third noise source strongly correlated with the steepness of the thermometer is required to fit the measured noise spectra. Thermal fluctuation noise, originating in the thermometer itself, fully explains the additional noise. A simple model provides quantitative agreement between the observed and calculated noise spectra for all bias points in the superconducting transition.  
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  Call Number (down) RPLAB @ gujma @ Serial 759  
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Author Floet D. W.; Gao J. R.; Klapwijk T. M.; de Korte P. A. J. url  doi
openurl 
  Title Bias Dependence of the Thermal Time Constant in Nb Superconducting Diffusion-Cooled HEB Mixers Type Journal Article
  Year 2000 Publication Appl. Phys. Lett. Abbreviated Journal Appl. Phys. Lett.  
  Volume 77 Issue Pages 1719  
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  Abstract We present an experimental study of the intermediate frequency bandwidth of a Nb diffusion-cooled hot-electron bolometer mixer for different bias voltages. The measurements show that the bandwidth increases with increasing voltage. Analysis of the data reveals that this effect is mainly caused by a decrease of the intrinsic thermal time of the mixer and that the effect of electrothermal feedback through the intermediate frequency circuit is small. The results are understood using a qualitative model, which takes into account the different effective diffusion constants in the normal and superconducting domains.  
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  Call Number (down) RPLAB @ atomics90 @ Serial 971  
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Author Tong, C.-Y. Edward; Kawamura, Jonathan; Todd, R. Hunter; Papa, D. Cosmo; Blundell, Raymond.; Smith, Michael; Patt, Ferdinand; Gol'tsman, Gregory; Gershenzon, Eugene url  openurl
  Title Successful operation of a 1 THz NbN hot-electron bolometer receiver Type Conference Article
  Year 2000 Publication Proc. 11th Int. Symp. Space Terahertz Technol. Abbreviated Journal Proc. 11th Int. Symp. Space Terahertz Technol.  
  Volume Issue Pages 49-59  
  Keywords NbN HEB mixers, applications  
  Abstract A phonon-cooled NbN superconductive hot-electron bolometer receiver covering the frequency range 0.8-1.04 THz has successfully been used for astronomical observation at the Sub-Millimeter Telescope Observatory on Mount Graham, Arizona. This waveguide heterodyne receiver is a modified version of our fixed-tuned 800 GHz HEB receiver to allow for operation beyond 1 THz. The measured noise temperature of this receiver is about 1250 K at 0.81 THz, 560 K at 0.84 THz, and 1600 K at 1.035 THz. It has a 1 GHz wide IF bandwidth, centered at 1.8 GHz. This receiver has recently been used to detect the CO (9-8) molecular line emission at 1.037 THz in the Orion nebula. This is the first time a ground-based heterodyne receiver has been used to detect a celestial source above 1 THz.  
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  Call Number (down) Serial 303  
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Author Semenov, A. D.; Hübers, H.–W.; Schubert, J.; Gol'tsman, G. N.; Elantiev, A. I.; Voronov, B. M.; Gershenzon, E. M. url  openurl
  Title Frequency dependent noise temperature of the lattice cooled hot-electron terahertz mixer Type Conference Article
  Year 2000 Publication Proc. 11th Int. Symp. Space Terahertz Technol. Abbreviated Journal Proc. 11th Int. Symp. Space Terahertz Technol.  
  Volume Issue Pages 39-48  
  Keywords NbN HEB mixers  
  Abstract We present the measurements and the theoretical model on the frequency dependent noise temperature of a lattice cooled hot electron bolometer (HEB) mixer in the terahertz frequency range. The experimentally observed increase of the noise temperature with frequency is a cumulative effect of the non-uniform distribution of the high frequency current in the bolometer and the charge imbalance, which occurs near the edges of the normal domain and contacts with normal metal. In addition, we present experimental results which show that the noise temperature of a HEB mixer can be reduced by about 30% due to a Parylene antireflection coating on the Silicon hyperhemispheric lens.  
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  Notes Approved no  
  Call Number (down) Serial 305  
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