By arranging the nanoscale unit cells in a desired geometry, the refractive index of the metamaterial can be adjusted to positive, near-zero, or negative values. Among the most sought-after properties ...

Recent studies have demonstrated engineering metamaterials with unprecedented characteristics such as left-handedness with simultaneous negative permittivity and permeability, negative lens that focus ...

The field of metamaterials is an emerging discipline in the early 21st century, attracting significant attention in fundamental science and engineering applications. Recently, a comprehensive review ...