The engineering of the spatial and temporal properties of both the electric permittivity and
the refractive index of materials is at the core of photonics. When vanishing to zero, those …

This tutorial offers a comprehensive overview of photonic time crystals: artificial materials
whose electromagnetic properties are periodically modulated in time at scales comparable …

The realization of photonic time crystals is a major opportunity but also comes with
considerable challenges. The most pressing one, potentially, is the requirement for a …

This paper presents an analytical framework for the study of scattering and diffraction
phenomena in space-time-modulated metallic gratings. Using a Lorentz transformation, it is …

Metamaterials are a fascinating class of photonic materials since they allow us to control
optical responses (largely) at will. Besides being an intellectual challenge, adding time …

An extension of the photonic layer multiple scattering methodology to dynamic spherical
scatterers, which exhibit a periodic time‐varying response, is presented. The applicability of …

A proper generalization of the extended boundary condition method to calculate the
transition matrix, T, for electromagnetic scattering from a homogeneous and isotropic body of …

The realization of photonic time crystals is a major opportunity but also comes with
significant challenges. The most pressing one, potentially, is the requirement for a …

Lorentzian-type media support optical phonons that oscillate with longitudinal polarization
parallel to the wave direction, at a wave-vector-independent frequency at which the …

Scattering wave systems that are periodically modulated in time offer many new degrees of
freedom to control waves in both the spatial and frequency domains. Such systems, albeit …