Spacetime Processing Metasurfaces: GSTC Synthesis and Prospective Applications
Nima Chamanara, Yousef Vahabzadeh, Karim Achouri, Christophe Caloz
TL;DR
This paper introduces spacetime processing metasurfaces synthesized via GSTCs, capable of performing complex spatio-temporal transformations on electromagnetic waves, with potential applications demonstrated through specific metasurface designs.
Contribution
It proposes a general framework for designing spacetime metasurfaces using GSTCs, enabling multiple simultaneous transformations on electromagnetic waves.
Findings
Demonstration of a time-reversal space-generalized-refraction metasurface
Design of multi-time-space-differentiating metasurfaces
Potential for advanced electromagnetic wave manipulation
Abstract
The paper presents the general concept of spacetime processing metasurfaces, synthesized by generalized sheet transition conditions (GSTCs). It is shown that such metasurfaces can perform multiple simultaneous spatio-temporal processing transformations on incident electromagnetic waves. A time-reversal space-generalized-refraction metasurface and a multi-time-space-differentiating metasurfaces are presented as applications of the general spacetime processing metasurface concept.
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