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Quantum noise in a ...
Quantum noise in a terahertz hot electron bolometer mixer
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- Zhang, W. (författare)
- Netherlands Institute for Space Research (SRON),Chinese Academy of Sciences
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- Khosropanah, Pourya, 1971 (författare)
- Netherlands Institute for Space Research (SRON)
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- Gao, J. R. (författare)
- Netherlands Institute for Space Research (SRON),Technische Universiteit Delft,Delft University of Technology (TU Delft)
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- Kollberg, Erik, 1937 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Yngvesson, K. S. (författare)
- University of Massachusetts
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- Bansal, T. (författare)
- Netherlands Institute for Space Research (SRON),Technische Universiteit Delft,Delft University of Technology (TU Delft)
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- Barends, R. (författare)
- Technische Universiteit Delft,Delft University of Technology (TU Delft)
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- Klapwijk, T. M. (författare)
- Technische Universiteit Delft,Delft University of Technology (TU Delft)
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(creator_code:org_t)
- AIP Publishing, 2010
- 2010
- Engelska.
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 96:11, s. 111113 -
- Relaterad länk:
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We have measured the noise temperature of a single, sensitive superconducting NbN hot electron bolometer (HEB) mixer in a frequency range from 1.6 to 5.3 THz, using a setup with all the key components in vacuum. By analyzing the measured receiver noise temperature using a quantum noise (QN) model for HEB mixers, we confirm the effect of QN. The QN is found to be responsible for about half of the receiver noise at the highest frequency in our measurements. The beta-factor (the quantum efficiency of the HEB) obtained experimentally agrees reasonably well with the calculated value.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- millimetre wave mixers
- bolometers
- quantum noise
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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