Simulating the enhanced photoabsorption and terahertz emission of gallium arsenide photoconductive antenna with gold nanoparticles and metal line arrays via finite-difference time-domain calculations
Abstract
In this work a photoconductive antenna (PCA) with gold (Au) nanoparticles (NPs) on the PCA gap, and metal line arrays on the PCA emission side was simulated via the finite-difference time-domain from Ansys Lumerical Inc. From the simulation, the calculated enhancement factors for the Au NPs, MLA, and combination of Au NPs and MLA, relative to the reference PCA, are ~1.9x, ~2.5x, and ~5x, respectively. The results from this study is invaluable to the optimization of PCA design for viable industrial applications.
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3-6 July 2024, Batangas State University, Pablo Borbon Campus
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