A 492 GHz quasioptical SIS receiver for submillimeter astronomy
نویسندگان
چکیده
منابع مشابه
A 492 GHz quasiopticd SIS receiver for submillimeter astronomy
A 492 GHz quasioptical superconductor-insulator-superconductor (SIS) heterodyne receiver for submillimeter astronomy has been constructed with a double-sideband noise temperature of 170+25 K, where the system response is an average over a 600 MHz i.f. bandwidth centered at 1.5 GHz. The excellent sensitivity is achieved through use of a planar twin-slot antenna feeding a pair of Nb-&OX-Nb juncti...
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We have developed a niobium titanium nitride (NbTiN) based superconductorinsulator-superconductor (SIS) receiver to cover the 350 micron atmospheric window. This frequency band lies entirely above the energy gap of niobium (700 GHz), a commonly used SIS superconductor. The instrument uses an open structure twin-slot SIS mixer that consists of two Nb/AlN/NbTiN tunnel junctions, NbTiN thin-film m...
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ژورنال
عنوان ژورنال: Review of Scientific Instruments
سال: 1994
ISSN: 0034-6748,1089-7623
DOI: 10.1063/1.1144831