Design and Analysis of Metamaterial Electromagnetic Wave Absorbers at THz Frequency

The subject of THz research and technology has advanced dramatically over the previous two decades. In the THz regime, a metamaterial-based absorber is in high demand. Metamaterials (MMs) can be employed as an effective medium by changing the shape to influence the electromagnetic characteristics. All incident radiations at a specific operational frequency are absorbed by a unity absorber, while transmissivity, reflectivity, scattering, and all other light propagation pathways are inhibited. The main focus of this study is on metamaterial-based perfect absorbers (MMPA) in the THz regime. This paper presents an MMPA with two metallic layers and a dielectric. The suggested MMPA is investigated utilising three different materials: gold, silver, and copper, with a comparison between them shown her