Study the optical property of gold nanoparticle and apply them to design bowtie nanoantenna using FDTD simulation

摘要

Abstract In this study, we?have investigated the optical property of single and coupled gold nanoparticle (AuNP) using the finite-difference time-domain?(FDTD) method. The initial study ?facilitated? us to simulate the bowtie antenna where we investigated the key performance parameters of optical nano?antennas such as extinction efficiency, plasmon coupling, near?-and far-field enhancement, transmission?and reflection as a function of size, and separation. The findings of this study will be beneficial?to design a more complicated optical nano?antenna, tuning the frequency in THz range?varying the size,?shape and geometry and also to?meet the future need of 6G communication and beyond.