Recent progress in nanophotonics and material science has inspired a strong interest in
optically-induced material dynamics, opening new research directions in the distinct fields of …

BACKGROUND Metasurfaces have opened up a number of remarkable new approaches to
manipulate light. These flat optical elements are constructed from a dense array of strongly …

Metasurfaces, a two-dimensional (2D) form of metamaterials constituted by planar meta-
atoms, exhibit exotic abilities to tailor electromagnetic (EM) waves freely. Over the past …

Abstract Space-time duality in paraxial optical wave propagation implies the existence of
intriguing effects when light interacts with a material exhibiting two refractive indexes …

Deflecting and changing the direction of propagation of electromagnetic waves are needed
in multiple applications, such as in lens–antenna systems, point-to-point communications …

Applications such as microwave wireless communications, optical light fidelity, and light
detection and ranging systems require advanced interfaces that can couple guided waves …

Intelligent metasurfaces have gained significant importance in recent years due to their
ability to dynamically manipulate electromagnetic (EM) waves. Their multifunctional …

The capability of on-chip wavefront modulation has the potential to revolutionize many
optical device technologies. However, the realization of power-efficient phase-gradient …

Metamaterials are mostly designed in the time-harmonic scenario where wave propagation
can be spatially manipulated. Tailoring the electromagnetic response of media in time has …

Abstract Space− time modulated metamaterials support extraordinary rich applications, such
as parametric amplification, frequency conversion, and non-reciprocal transmission. The …