Metasurfaces have introduced new opportunities in photonic design by offering
unprecedented, nanoscale control over optical wavefronts. These artificially structured …

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 …

Time-varying metamaterials rely on large and fast changes of the linear permittivity. Beyond
the linear terms, however, the effect of a non-perturbative modulation of the medium on …

Phased-array metasurfaces enable the imprinting of complex beam structures onto coherent
incident light. Recent demonstrations of photoluminescent phased-array metasurfaces …

Time-varying optical metasurfaces have attracted significant research attention for their
ability to dynamically modulate the spectral characteristics of light and achieve effects not …

Optical communication can be revolutionized by encoding data into the orbital angular
momentum of light beams. However, state-of-the-art approaches for dynamic control of …

Directional emission of photoluminescence despite its incoherence is an attractive
technique for light-emitting fields and nanophotonics. Optical metasurfaces provide a …

The advent of intelligent display devices has given rise to diverse and complex demands for
miniature light‐emitting devices. Light‐emitting metasurfaces have emerged as a practical …

Metasurfaces offer a unique playground to tailor the electromagnetic field at subwavelength
scale to control polarization, wavefront, and nonlinear processes. Tunability of the optical …

Subwavelength control of the electromagnetic field distribution represents one of the current
challenges in photonics research. In this field, diffractive metasurfaces with spatially …