Hyperbolic metamaterials: fusing artificial structures to natural 2D materials
Dasol Lee, Sunae So, Guangwei Hu, Minkyung Kim, Trevon Badloe, Hanlyun Cho, Jae‐Kyung Kim, Hongyoon Kim, Cheng‐Wei Qiu, Junsuk Rho
Abstract
Abstract Optical metamaterials have presented an innovative method of manipulating light. Hyperbolic metamaterials have an extremely high anisotropy with a hyperbolic dispersion relation. They are able to support high- k modes and exhibit a high density of states which produce distinctive properties that have been exploited in various applications, such as super-resolution imaging, negative refraction, and enhanced emission control. Here, state-of-the-art hyperbolic metamaterials are reviewed, starting from the fundamental principles to applications of artificially structured hyperbolic media to suggest ways to fuse natural two-dimensional hyperbolic materials. The review concludes by indicating the current challenges and our vision for future applications of hyperbolic metamaterials.