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Low noise NbN latti...
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Kawamura, J.Harvard-Smithsonian Center for Astrophysics
(author)
Low noise NbN lattice-cooled superconducting hot-electron bolometric mixers at submillimeter wavelengths
- Article/chapterEnglish1997
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LIBRIS-ID:oai:research.chalmers.se:1881ea91-d2ae-4515-8fe7-45b8ae0b451a
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https://research.chalmers.se/publication/501001URI
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https://doi.org/10.1063/1.118634DOI
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Language:English
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Summary in:English
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Lattice-cooled superconducting hot-electron bolometric mixers are used in a submillimeter-wave waveguide heterodyne receiver. The mixer elements are niobium nitride film with 3.5 nm thickness and ∼ 10 μm2 area. The local oscillator power for optimal performance is estimated to be 0.5 μW, and the instantaneous bandwidth is 2.2 GHz. At an intermediate frequency centered at 1.4 GHz with 200 MHz bandwidth, the double sideband receiver noise temperature is 410 K at 430 GHz. The receiver has been used to detect molecular line emission in a laboratory gas cell.
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Blundell, R.Harvard-Smithsonian Center for Astrophysics
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Tong, C.-Y.E.Harvard-Smithsonian Center for Astrophysics
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Gol'tsman, G.N.Moscow State Pedagogical University
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Gershenzon, E.M.Moscow State Pedagogical University
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Voronov, BorisMoscow State Pedagogical University
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Cherednichenko, Serguei,1970Moscow State Pedagogical University(Swepub:cth)serguei
(author)
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Harvard-Smithsonian Center for AstrophysicsMoscow State Pedagogical University
(creator_code:org_t)
Related titles
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In:Applied Physics Letters: AIP Publishing70:12, s. 1619-16210003-69511077-3118
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