A millimeter-submillimeter phonon-cooled hot-electron bolometer mixer based on two-dimensional electron gas in an AlGaAs/GaAs heterostructure

Morozov, Dmitry L., Smirnov, K. V., Lyakhov, K. V. and Goltsman, G. N. 2005. A millimeter-submillimeter phonon-cooled hot-electron bolometer mixer based on two-dimensional electron gas in an AlGaAs/GaAs heterostructure. Semiconductors 39 (9) , pp. 1082-1086. 10.1134/1.2042603

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Abstract

Experimental results obtained by studying the main characteristics of a millimeter-submillimeterwave mixer based on the hot-electron effect in a two-dimensional electron gas in a AlGaAs/GaAs heterostructure with a phonon-scattering cooling mechanism for charge carriers are reported. The gain bandwidth of the mixer is 4 GHz, the internal conversion losses are 13 dB, and the optimum local-oscillator power is 0.5 μW (for a mixer area of 1 μm2). It is shown that a millimeter-submillimeter-wave receiver with a noise temperature of 1900 K can be developed on the basis of a AlGaAs/GaAs mixer. This mixer also appears to be promising for use in array receiver elements.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Uncontrolled Keywords:	Magnetism; magnetic materials; electromagnetism; optics and lasers.
Additional Information:	Translated from Fizika i Tekhnika Poluprovodnikov, Vol. 39, No. 9, 2005, pp. 1117–1121.
Publisher:	Springer
ISSN:	1063-7826
Last Modified:	04 Jun 2017 06:29
URI:	https://orca.cardiff.ac.uk/id/eprint/60910

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