Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
81 (2002), S. 1243-1245
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We show that bolometric mixers fabricated from a high mobility two-dimensional electron gas can reach a regime where electron energy relaxation is dominated by ballistic, rather than diffusive, outflow of excited electrons. This ballistic cooling mechanism establishes the maximum physical limit on mixer speed for a transit-time limited device. Intermediate frequency bandwidths of nearly 40 GHz have been obtained in devices with channel lengths 〉1 μm in ballistically cooled devices. © 2002 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1500429
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