Terahertz detection using double quantum well devices

Details Terahertz detection using double quantum well devices Terahertz detection using double quantum well devices

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001spie.4490..104k&link_type=abstract

Proc. SPIE Vol. 4490, p. 104-113, Multifrequency Electronic/Photonic Devices and Systems for Dual-Use Applications, Andrew R. Pi

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This paper discusses the principle of operation of an electrically tunable THz detector, working around 2.54 THz, integrated with a bowtie antenna. The detection is based on the idea of photon-assisted tunneling (PAT) in a double quantum well (DQW) device. The bowtie antenna is used to collect the THz radiation and feed it to the detector for processing. The Bowtie antenna geometry is integrated with the DQW device to achieve broadband characteristic, easy design, and compatibility with the detector fabrication process. The principle of operation of the detector is introduced first. Then, results of different bowtie antenna layouts are presented and discussed.

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