Engineering Terahertz Detector Arrays Based on InAs Nanowire Photoconductive Switches

Hannah J. Joyce*, Jack A. Alexander-Webber, Greg Chu, Jamie D. Lake, Thomas Albrow-Owen, Michael B. Johnston, H. Hoe Tan, C. Jagadish

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Arrays of nanowire-based photoconductive antennas hold potential for hyperspectral imaging in the terahertz range. InAs nanowires were selected for their high electron mobility, tunable charge carrier lifetimes and small footprints. We investigate different nanowire crystal structures (zinc-blende and metastable wurtzite), different diameters and different surface treatments to achieve phase sensitive detectors of terahertz radiation that can be integrated into an array suitable for hyperspectral terahertz imaging. Machine vision identification of nanowires and automated electrode routing processes are employed to generate arrays of nanowire photoconductive antennas, even from initial distributions of randomly and irregularly located nanowires.

Original languageEnglish
Title of host publication2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2024
PublisherIEEE Computer Society
ISBN (Electronic)9798350370324
DOIs
Publication statusPublished - 2024
Event49th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2024 - Perth, Australia
Duration: 1 Sept 20246 Sept 2024

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference49th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2024
Country/TerritoryAustralia
CityPerth
Period1/09/246/09/24

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