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A Superconducting Hot Electron Bolometer Mixer for 530 GHz

Show simple item record Skalare, A. en_US McGrath, W.R. en_US Bumble, B. en_US LeDuc, H.G. en_US Burke, P.J. en_US Verheijen, A.A. en_US Prober, D.E. en_US 2004-10-05T05:20:50Z 2004-10-05T05:20:50Z 1994-05-10 en_US
dc.identifier.citation Ann Arbor, MI en_US
dc.identifier.clearanceno 94-1106 en_US
dc.description.abstract This paper describes a superconducting hot electron bolometer mixer that uses diffusion rather than interactions with phonons as a cooling mechanism for the hot electrons. The bolometer is a 0.14 µm; wide niobium microbridge with a length less than 0.5 µm;. The submicron length ensures rapid diffusion of the hot electrons into contacting gold films. This mechanism is believed to be fast enough to allow mixer operation with intermediate frequencies of several GHz. An electron cooling time of 55 ps is inferred from DC resistance versus temperature measurements, indicating a roll-off frequency close to 3 GHz. Initial receiver measurements using a two-tuner waveguide mixer confirm heterodyne mixing at 532 GHz with an intermediate frequency of 1.4 GHz. en_US
dc.format.extent 1103979 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject.other bolometer superconducting hot electron cooling niobium mixer phonons en_US
dc.title A Superconducting Hot Electron Bolometer Mixer for 530 GHz en_US

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