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 National Institute of Physics, University of the Philippines Diliman
Kenneth Alaba National Institute of Physics, University of the Philippines Diliman
Jose Mari Sebastian C. Arcilla National Institute of Physics, University of the Philippines Diliman
Ivan Cedrick M. Verona National Institute of Physics, University of the Philippines Diliman
Hannah R. Bardolaza National Institute of Physics, University of the Philippines Diliman
Elmer S. Estacio 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.

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.