Hybrid Plasmonic Waveguide Fed Broadband Nano-antenna for Nanophotonic Applications

TL;DR

This paper introduces a hybrid plasmonic waveguide fed broadband nano-antenna designed for nanophotonic applications, demonstrating wide bandwidth, directional radiation, and suitability for optical communication, sensing, and energy harvesting.

Contribution

It presents a novel broadband nano-antenna with a hybrid plasmonic waveguide, achieving wide operational bandwidth and directional radiation for nanophotonic applications.

Findings

Achieves around 86% bandwidth across key optical communication wavelengths.

Demonstrates directional radiation with satisfactory gain.

Effective in array configurations for enhanced nanophotonic functions.

Abstract

In this paper, we propose a novel hybrid plasmonic waveguide fed broadband optical patch nano-antenna for nanophotonic applications. Through full wave electromagnetic simulation, we demonstrated our proposed antenna to radiate and receive signal at all optical communication windows (e.g. $\lambda$ = 850nm, 1310nm & 1550nm) with around 86% bandwidth within the operational domain. Moreover numerical results demonstrate that the proposed nano-antenna has directional radiation pattern with satisfactory gain over all three communication bands. Additionally, we evaluated the antenna performances with two different array arrangements (e.g. one dimensional and square array). The proposed broadband antenna can be used for prominent nanophotonic applications such as optical wireless communication in inter and intra-chip devices, optical sensing and optical energy harvesting etc.