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Broad-band microwave detection with a novel 2D hot-electron device

✍ Scribed by S. Barbieri; F. Mango; F. Beltram; M. Lazzarino; L. Sorba

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 105 KB
Volume: 23
Category: Article
ISSN: 0749-6036
DOI: 10.1006/spmi.1996.0309

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✦ Synopsis

We present the operation of a new AlGaAs-GaAs multiquantum well hot-electron microwave detector. The working principle of this device is based on the interaction of twodimensional free carriers inside the wells with the in-plane electric field.

We shall report room-temperature responsivity of several 10 3 V W -1 , comparable to that of conventional solid-state devices. The different physical principle of operation, however, yields for the present detector a broader frequency range, extending up to the submillimetre band, and short response times which can be estimated around 10 ps. Finally, we report a characterization of the device from the point of view of noise.

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