Abstract
We demonstrate a unique photoconductive design for terahertz (THz) detection based on a perfectly absorbing, all-dielectric metasurface. Our design exploits Mie resonances in electrically connected cubic resonators fabricated in low-temperature grown (LT) GaAs. Experimentally, the detector achieves very high contrast between ON/OFF conductivity states (107) whilst also requiring extremely low optical power for optimal operation (100 muW). We find that the Mie resonances dissipate sufficiently fast and maintain the detection bandwidth up to 3 THz.
Original language | English |
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Title of host publication | IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves |
Publisher | IEEE Computer Society Press |
ISBN (Electronic) | 9781538682852 |
DOIs | |
Publication status | Published - Sept 2019 |
Event | 44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 - Paris, France Duration: 1 Sept 2019 → 6 Sept 2019 |
Publication series
Name | International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz |
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Volume | 2019-September |
ISSN (Print) | 2162-2027 |
ISSN (Electronic) | 2162-2035 |
Conference
Conference | 44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 |
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Country/Territory | France |
City | Paris |
Period | 1/09/19 → 6/09/19 |
Bibliographical note
Publisher Copyright:© 2019 IEEE.
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering