Time-varying media have recently emerged as a new paradigm for wave manipulation, due
to the synergy between the discovery of highly nonlinear materials, such as epsilon-near …

Static reactive metasurfaces allow excitation and propagation of surface waves. In this
paper, we theoretically elucidate how surface-wave propagation along a reactive boundary …

Topological acoustic interface states in one-dimensional (1D) acoustic topological insulators
(ATIs) are zero-dimensional (0D) topological states localized at an interface. Unlike …

Space-time modulation of electromagnetic parameters offers novel exciting possibilities for
advanced field manipulations. In this study, we explore wave scattering from a time-varying …

Since the dawn of modern optics and electromagnetics, the optical prism is one of the most
fascinating optical elements for refracting light. Exploiting its frequency dispersive behavior …

Photonic time crystals (PTCs) host momentum band gaps, enabling intriguing nonresonant
light amplification in propagating waves, but opening substantial band gaps demands …

Time‐varying electromagnetic materials are introducing new ways to control and transform
light waves, unlocking unexplored scattering phenomena. In this paper, the wave …

Time-interfaces, at which the optical properties of a medium undergo abrupt and spatially
uniform changes, have attracted surging interest in optics and wave physics. In this work, we …

Temporal metamaterials, based on time-varying constitutive properties, offer new exciting
possibilities for advanced field manipulations. In this study, we explore the capabilities of …

Photonic time interfaces, as the temporal analogue of spatial interfaces between two media,
consist of a rapid change of the electromagnetic properties of a material (such as permittivity …