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A superconducting tunnel junction receiver for 345 GHz (1990)

Sutton, E. C. ; Danchi, W. C. ; Jaminet, P. A. ; [et al.]

Springer

International journal of infrared and millimeter waves 11 (1990), S. 133-150

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ISSN: 1572-9559

Keywords: mixer ; superconducting ; tunnel junction

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract In this paper we discuss the design, fabrication, and testing of a quasiparticle tunnel junction receiver for use at 345 GHz. The design employs small area Nb/Nb-oxide/PbInAu edge junctions in order to keep the device capacitance small and maintain a modest value for ωRNC. For optimura noise performance and beam properties the mixer is contained in a waveguide mounting structure. Our best sensitivity was obtained at 312 GHz where we measured a double sideband (DSB) noise temperature of 275 K. Noise temperatures of 400 K (DSB) or better were obtained out to 350 GHz.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01010511

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