Title: Fabrication and Characterization of Plasmonic Thin-Film Terahertz Photoconductive Antenna
Abstract: This work presents the fabrication and experimental characterization of a plasmonic thin-film terahertz photoconductive antenna. The fabricated plasmonic thin-film devices were characterized in a time-domain spectrometer setup. The devices demonstrated a 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> times increase in the average power when compared to a conventional device, as well as over 4 THz usable bandwidth. This increase in performance was due to the combination of plasmonic nanostructures and a thin-film optically resonant photoconductive layer. These features effectively trap the optical laser beam used to drive the antenna in a region of the photoconductor nearest to the antenna electrodes, increasing collection efficiency of the photocarriers and output THz power of the antenna.
Publication Year: 2018
Publication Date: 2018-07-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 2
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