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Low noise NbN latti...
Low noise NbN lattice-cooled superconducting hot-electron bolometric mixers at submillimeter wavelengths
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- Kawamura, J. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Blundell, R. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Tong, C.-Y.E. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Gol'tsman, G.N. (author)
- Moscow State Pedagogical University
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- Gershenzon, E.M. (author)
- Moscow State Pedagogical University
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- Voronov, Boris (author)
- Moscow State Pedagogical University
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- Cherednichenko, Serguei, 1970 (author)
- Moscow State Pedagogical University
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(creator_code:org_t)
- AIP Publishing, 1997
- 1997
- English.
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In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 70:12, s. 1619-1621
- Related links:
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Subject headings
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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.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- superconductivity
- noise propagation
- heterodyne receivers
- niobium
- oscillators
Publication and Content Type
- art (subject category)
- ref (subject category)
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