This article presents a global and generalized perspective of electrodynamic meta-materials
formed by space and time engineered modulations, which we name Generalized Space-
Time Engineered Modulation (GSTEM) Metamaterials, or GSTEMs. In this perspective, it
describes metamaterials from a unified spacetime viewpoint and introduces accelerated
metamaterials as an extra type of dynamic metamaterials. First, it positions GSTEMs in the
even broader context of electrodynamic systems that include (non-modulated) moving …

This article presents a global and extended perspective of electrodynamic metamaterials
formed by space and time engineered modulations, which we name generalized space-time
engineered modulation (GSTEM) metamaterials, or GSTEMs. This perspective describes
metamaterials from a unified spacetime viewpoint and introduces accelerated metamaterials
as an extra type of dynamic metamaterials. First, it positions GSTEMs in the even broader
context of electrodynamic systems that include (nonmodulated) moving sources in vacuum …