A metamaterial is an artificially built substance with remarkable electromagnetic properties that are not found in nature or are difficult to obtain. Metamaterials have been a rapidly emerging interdisciplinary field including physics, electrical engineering, materials science, optics, and nanoscience since the early 2000s. Metamaterials' qualities can be changed by changing their internal physical structure. This distinguishes them from natural materials, whose qualities are primarily dictated by chemical ingredients and bonds. The peculiar impact of light traveling through metamaterials is the major reason for the intense interest in them.
Metamaterials are manmade structures that are randomly or periodically distributed and have a size and spacing far smaller than the wavelengths of incoming electromagnetic radiation. As a result, the wave is unable to discern the microscopic intricacies of these individual structures.
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