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Monolayer Graphene Bolometer as a Sensitive Far-IR DetectorIn this paper we give a detailed analysis of the expected sensitivity and operating conditions in the power detection mode of a hot-electron bolometer (HEB) made from a few micro m(sup 2) of monolayer graphene (MLG) flake which can be embedded into either a planar antenna or waveguide circuit via NbN (or NbTiN) superconducting contacts with critical temperature approx. 14 K. Recent data on the strength of the electron-phonon coupling are used in the present analysis and the contribution of the readout noise to the Noise Equivalent Power (NEP) is explicitly computed. The readout scheme utilizes Johnson Noise Thermometry (JNT) allowing for Frequency-Domain Multiplexing (FDM) using narrowband filter coupling of the HEBs. In general, the filter bandwidth and the summing amplifier noise have a significant effect on the overall system sensitivity.
Document ID
20160005623
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Karasik, Boris S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
McKitterick, Christopher B.
(Yale Univ. New Haven, CT, United States)
Prober, Daniel E.
(Yale Univ. New Haven, CT, United States)
Date Acquired
May 2, 2016
Publication Date
June 22, 2014
Subject Category
Astrophysics
Meeting Information
Meeting: SPIE Astronomical Telescopes + Instrumentation 2014 Symposium
Location: Montreal, Quebec
Country: Canada
Start Date: June 22, 2014
End Date: June 27, 2014
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Other
Keywords
noise thermometry
far-infrared astrophysics
hot-electron bolometer

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