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

Authors

Lourdes Nicole F. Dela Rosa ⋅ PH National Institute of Physics, University of the Philippines Diliman
Kenneth Alaba ⋅ PH National Institute of Physics, University of the Philippines Diliman
Jose Mari Sebastian C. Arcilla ⋅ PH National Institute of Physics, University of the Philippines Diliman
Ivan Cedrick M. Verona ⋅ PH National Institute of Physics, University of the Philippines Diliman
Hannah R. Bardolaza ⋅ PH National Institute of Physics, University of the Philippines Diliman
Elmer S. Estacio ⋅ PH National Institute of Physics, University of the Philippines Diliman

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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Issue

2024: Proceedings of the 42nd Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2024-PA-15

Section

Poster Session A (Condensed Matter Physics and Materials Science)

Published

2024-06-28

How to Cite

[1]

LNF Dela Rosa, K Alaba, JMSC Arcilla, ICM Verona, HR Bardolaza, and ES Estacio, 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, Proceedings of the Samahang Pisika ng Pilipinas 42, SPP-2024-PA-15 (2024). URL: https://proceedings.spp-online.org/article/view/SPP-2024-PA-15.