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Author Cherednichenko, S.; Kroug, M.; Khosropanah, P.; Adam, A.; Merkel, H.; Kolberg, E.; Loudkov, D.; Voronov, B.; Gol'tsman, G.; Richter, H.; Hübers, H. W. url  openurl
  Title A broadband terahertz heterodyne receiver with an NbN HEB mixer Type Conference Article
  Year 2002 Publication Proc. 13th Int. Symp. Space Terahertz Technol. Abbreviated Journal Proc. 13th Int. Symp. Space Terahertz Technol.  
  Volume Issue Pages 85-95  
  Keywords NbN HEB mixers  
  Abstract We present a broadband and low noise heterodyne receiver for 1.4-1.7 THz designed for the Hershel Space Observatory. A phonon- cooled NbN HEB mixer was integrated with a normal metal double- slot antenna and an elliptical silicon lens. DSB receiver noise temperature Tr was measured from 1 GHz through 8GHz intermediate frequency band with 50 MHz instantaneous bandwidth. At 4.2 K bath temperature and at 1.6 THz LO frequency Tr is 800 K with the receiver noise bandwidth of 5 GHz. While at 2 K bath temperature Tr was as low as 700 K. At 0.6 THz and 1.1 THz a spiral antenna integrated NbN HEB mixer showed the receiver noise temperature 500 K and 800 K, though no antireflection coating was used in this case. Tr of 1100 K was achieved at 2.5 THz while the receiver noise bandwidth was 4 GHz.  
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  Publisher Place of Publication Cambridge, MA, USA Editor Harward University  
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  Notes Approved no  
  Call Number Serial 332  
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Author Shytov, A. V.; Levitov, L. S.; Beenakker, C. W. J. url  doi
openurl 
  Title Electromechanical noise in a diffusive conductor Type Journal Article
  Year 2002 Publication Phys. Rev. Lett. Abbreviated Journal Phys. Rev. Lett.  
  Volume 88 Issue 22 Pages  
  Keywords  
  Abstract Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. The root-mean-squared momentum transfer per scattering event in a disordered metal (of dimension L greater than the mean free path l and screening length xi) is found to be reduced below the Fermi momentum by a factor of order l/L for shear fluctuations and (xi/L)^2 for pressure fluctuations. The excitation of an elastic bending mode by the shear fluctuations is estimated to fall within current experimental sensitivity for a nanomechanical oscillator.  
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  ISSN 0031-9007 ISBN Medium  
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  Notes Approved no  
  Call Number RPLAB @ s @ Serial 433  
Permanent link to this record
 
 
Author Ediss, G. A.; Koller, D. url  openurl
  Title 68.5 to 118 GHz measurements of possible infrared filter materials: black polyethylene, Zitex, and grooved and un-grooved fluorogold and HDPE Type Miscellaneous
  Year 2002 Publication ALMA Memo Abbreviated Journal  
  Volume Issue 412 Pages  
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  Notes Approved no  
  Call Number RPLAB @ s @ Serial 446  
Permanent link to this record
 
 
Author Norton, P. openurl 
  Title HgCdTe infrared detectors Type Journal Article
  Year 2002 Publication Opto-Electronics Review Abbreviated Journal Opto-Electron. Rev.  
  Volume 10 Issue 3 Pages 159-174  
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  Notes Approved no  
  Call Number Serial 458  
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Author Zhou, Y.D.; Becker, C. R.; Ashokan, R.; Selamet, Y.; Chang, Y.; Boreiko, R. T.; Betz, A. L.; Sivananthan, S. openurl 
  Title Progress in far-infrared detection technology Type Conference Article
  Year 2002 Publication Proc. SPIE Abbreviated Journal  
  Volume 4795 Issue Pages 121-128  
  Keywords HgCdTe/CdTe, detector  
  Abstract II-VI intrinsic very long wavelength infrared (VLWIR, λc~20 to 50 μm) materials, HgCdTe alloys as well as HgCdTe/CdTe superlattices, were grown by molecular beam epitaxy (MBE). The layers were characterized by means of X-ray diffraction, conventional Fourier transform infrared spectroscopy, Hall effect measurements and transmittance electron microscopy (TEM). Photoconductor devices were processed and their spectral response was also measured to demonstrate their applicability in the VLWIR region.  
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  Series Editor Longshore, R. E.; Sivananthan, S. Series Title Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series Abbreviated Series Title  
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  Notes Approved no  
  Call Number Serial 471  
Permanent link to this record
 
 
Author Colombelli, R url  doi
openurl 
  Title FIR quantum cascade lasers at λ>20 μm and THz emitters at λ=80 μm Type Journal Article
  Year 2002 Publication Phys. E: Low-dimensional Systems and Nanostructures Abbreviated Journal  
  Volume 13 Issue 2-4 Pages 848-853  
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  ISSN 1386-9477 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 483  
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Author Boreiko, R.T.; Betz, A.L. url  doi
openurl 
  Title Far-infrared laser emission from deuterated ammonia Type Journal Article
  Year 2002 Publication Applied Physics B: Lasers and Optics Abbreviated Journal Applied Physics B: Lasers and Optics  
  Volume 75 Issue 8 Pages 823-826  
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  ISSN 0946-2171 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 488  
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Author Benford, Dominic J.; Moseley, S. Harvey; Chervenak, Jay A. openurl 
  Title Mission requirements for ultralow-background, large format bolometer arrays Type Conference Article
  Year 2002 Publication Proc. Far-Infrared Submillimeter, & Millimeter Detector Workshop Abbreviated Journal  
  Volume Issue Pages  
  Keywords applicationsns  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Monterey, California Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
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  Notes Approved no  
  Call Number Serial 490  
Permanent link to this record
 
 
Author Peter H. Siegel openurl 
  Title Terahertz technology Type Journal Article
  Year 2002 Publication IEEE Trans. Microw. Theory Techn. Abbreviated Journal  
  Volume 50 Issue 3 Pages 910-928  
  Keywords THz applications  
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  Notes Approved no  
  Call Number Serial 494  
Permanent link to this record
 
 
Author Betzler, Klaus; Physik, Fachbereich openurl 
  Title Fabry-Perot Interferometer Type Manuscript
  Year 2002 Publication Universität Osnabrück Abbreviated Journal  
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  Notes Approved no  
  Call Number Serial 497  
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