Exploring advanced metamaterials for terahertz radiation generation with current challenges and future prospects

The generation of terahertz (THz) radiation has significant implications for various fields, including imaging, communications, and spectroscopy. Advanced metamaterials offer promising solutions for enhancing and controlling THz radiation due to their unique electromagnetic properties and engineered structures. This paper explores the advanced metamaterials designed for THz radiation generation we review recent advanced metamaterials, including dielectric metamaterials, hybrid metamaterials, graphene-based metamaterials, ferrite and superconducting based metamaterials. Additionally, we discuss the integration of these metamaterials using different generation methods for THz. Further exploring metamaterials potential applications and current challenges in generation of THz radiation. A comprehensive analysis of this study aims to provide insights into the capabilities of advanced metamaterials in enhancing THz radiation generation and to identify future research directions for optimizing their performance and applicability.