The Dawn of Spacetime Metamaterials : (Invited Paper)

This paper is a subset of a full-length paper that will be published in a special issue on metamaterials of the transactions at the end of this year. It presents the current authors' perspective on the emerging field of spacetime metamaterials. Emphasis is placed on the definition, contextualization and fundamentals of the concept. In addition, a few new physical effects are described and a number of applications are enumerated.