Bound states in the continuum (BICs) have attracted attention in photonics owing to their
interesting properties. For example, BICs can effectively confine light in a counterintuitive …

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 …

The study of magneto-optical absorption has stimulated diverse energy-technology-related
explorations, showing potential in breaking the current theoretical efficiency limits of energy …

Light detection and ranging (LiDAR) technology, a laser-based imaging technique for
accurate distance measurement, is considered one of the most crucial sensor technologies …

Double-slit experiments—where a wave is transmitted through a thin double aperture in
space—have confirmed the wave–particle duality of quantum objects, such as single …

Here we present a roadmap on Photonic metasurfaces. This document consists of a number
of perspective articles on different applications, challenge areas or technologies underlying …

Structured waves are ubiquitous for all areas of wave physics, both classical and quantum,
where the wavefields are inhomogeneous and cannot be approximated by a single plane …

Metamaterials with a Dirac-like cone dispersion at the center of the Brillouin zone behave
like an isotropic and impedance-matched zero refractive index material at the Dirac-point …

Nonlinear optical devices and their implementation into modern nanophotonic architectures
are constrained by their usually moderate nonlinear response. Recently, epsilon-near-zero …

In terahertz (THz) technologies, generation and manipulation of THz waves are two key
processes usually implemented by different device modules. Integrating THz generation and …