Terahertz Emission Enhancement of Gallium-Arsenide-Based Photoconductive Antennas by Silicon Nanowire Coating

Neil Irvin Cabello,Alexander De Los Reyes,Vladimir Sarmiento,John Paul Ferrolino,Victor DC Andres Vistro,John Daniel Vasquez,Hannah Bardolaza,Hideaki Kitahara,Masahiko Tani,Arnel Salvador,Armando Somintac,Elmer Estacio

IEEE Transactions on Terahertz Science and Technology（2022）

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摘要

In this article, we report on the enhancement of the terahertz (THz) emission characteristics of gallium arsenide-based photoconductive antennas (PCAs) upon coating with silicon nanowires (SiNWs). The SiNWs were fabricated using metal-assisted chemical etching and were dropcasted onto PCAs with dipole antenna patterns. The THz emission of the SiNW-coated PCA was observed to increase up to three ti...

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关键词

Principal component analysis,Gallium arsenide,Silicon,Frequency modulation,Coatings,Substrates,Laser excitation

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