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Proceedings Paper

Characterization of a graphene-based terahertz hot-electron bolometer
Author(s): H. Gao; W. Miao; Z. Wang; W. Zhang; Y. Geng; S. C. Shi; C. Yu; Z. Z. He; Q. B. Liu; Z. H, Feng
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Paper Abstract

Graphene has an extremely weak coupling of electrons to phonons due to its nonionic character of lattice. This remarkable property makes graphene very attractive for hot electron bolometers (HEBs). In this paper, we present the development of a graphene-based terahertz hot electron bolometer (HEB) with Johnson noise readout. The HEB is essentially a graphene microbridge that is connected to a log spiral antenna by Au contact pads. We study the responsivity, noise equivalent power (NEP) and time constant of the graphene-based HEB in a perpendicular magnetic field. In order to understand the thermal transport inside the graphene microbridge, we also measure the graphene-based HEB at different bath temperatures between 3 K and 10 K. Detailed experimental results and analysis will be presented.

Paper Details

Date Published: 7 December 2018
PDF: 6 pages
Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 108260X (7 December 2018); doi: 10.1117/12.2500700
Show Author Affiliations
H. Gao, Purple Mountain Observatory (China)
Univ. of Science and Technology of China (China)
Key Lab. of Radio Astronomy (China)
W. Miao, Purple Mountain Observatory (China)
Key Lab. of Radio Astronomy (China)
Z. Wang, Purple Mountain Observatory (China)
Key Lab. of Radio Astronomy (China)
W. Zhang, Purple Mountain Observatory (China)
Key Lab. of Radio Astronomy (China)
Y. Geng, Purple Mountain Observatory (China)
Univ. of Science and Technology of China (China)
Key Lab. of Radio Astronomy (China)
S. C. Shi, Purple Mountain Observatory (China)
Key Lab. of Radio Astronomy (China)
C. Yu, Hebei Semiconductor Research Institute (China)
Z. Z. He, Hebei Semiconductor Research Institute (China)
Q. B. Liu, Hebei Semiconductor Research Institute (China)
Z. H, Feng, Hebei Semiconductor Research Institute (China)


Published in SPIE Proceedings Vol. 10826:
Infrared, Millimeter-Wave, and Terahertz Technologies V
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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