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 …

We show that a spatiotemporal Bragg grating can be created inside a nonlinear dispersive
medium (such as silica fibers) by launching a periodic train of pump pulses that travel as …

An optical Bragg-like microcavity can be formed when extremely short light pulses
interacting coherently with the medium collide in the resonant medium. Here we present an …

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 …

Using time as an additional design parameter in electromagnetism, photonics, and wave
physics is attracting considerable research interest, motivated by the possibility to explore …

A plasma mirror is an optical device for high-power, ultrashort-wavelength electromagnetic
fields, utilizing a sheet of relativistic oscillating electrons to generate and manipulate light. In …

Within the framework of coupled-wave theory, we investigate the propagation of light in a
time-periodic chiral medium whose permittivity, permeability, and chirality parameter are …

By leveraging time interfaces and their combinations, time-switched metamaterials facilitate
efficient wave manipulation in a uniform medium, circumventing energy conservation during …

We present a simple model to estimate electromagnetic wave frequency up-conversion
resulting from rapidly forming gaseous plasma slabs. Such a model aids in the interpretation …

The Moir\'e superlattice has attracted growing interest in the electromagnetic and optical
communities. Here, we extend this concept to time-varying photonic systems by superposing …