High Performance Graphene-Based CW THz Photoconductive Detector

Volume
2020-November
Start Page
725
End Page
726
Article Number
9370371
Citation
International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2020)
Contribution to Conference
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW 2020  
Publisher DOI
10.1109/IRMMW-THz46771.2020.9370371
Scopus ID
2-s2.0-85103177481
New CW THz detectors based on graphene nanoelectrodes photomixer are completely investigated. The graphene nanoelectrodes are placed on low-temperature-grown (LTG) GaAs as photoconductive material. Due to the high transparency and high conductivity of graphene, increasing carrier densities were obtained which leads to the high performance detection of THz induced photocurrent being one order of magnitude higher than for conventional metallic interdigitated photomixer. The THz measurement was performed in the range of 50 GHz to 1.1 THz.