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Prospective performance of graphene HEB for ultrasensitive detection of sub-mm radiation
- Publication Year :
- 2014
-
Abstract
- Noise Equivalent Power and time constant of a submillimeter wave Hot-Electron Bolometer (HEB) made from monolayer graphene are analyzed using the lowest electron-phonon thermal conductance data reported to date. Frequency-domain multiplexed Johnson Noise Thermometry (JNT) is used for the detector readout. Planar microantennas or waveguides can provide efficient coupling of the graphene microdevice to radiation. The results show that the graphene HEB detector can be radiation background limited at very low level corresponding to the photon noise on a space telescope with cryogenically cooled mirror. Beside the high sensitivity, absence of a hard power saturation limit, higher operating temperature, and the ability to read 1000s of elements with a single broadband amplifier will be the advantages of such a detector.<br />7 page, 1 figure, 15th International Workshop on Low Temperature Detectors (Pasadena, California, June 24-28, 2013)
- Subjects :
- Materials science
Physics - Instrumentation and Detectors
FOS: Physical sciences
02 engineering and technology
Radiation
7. Clean energy
01 natural sciences
law.invention
Operating temperature
law
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
0103 physical sciences
General Materials Science
010306 general physics
Noise-equivalent power
Coupling
Condensed Matter - Mesoscale and Nanoscale Physics
business.industry
Graphene
Detector
Bolometer
Johnson–Nyquist noise
Instrumentation and Detectors (physics.ins-det)
021001 nanoscience & nanotechnology
Condensed Matter Physics
Atomic and Molecular Physics, and Optics
Optoelectronics
0210 nano-technology
business
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....99488f31f89b64f5263face26bbc59c5