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 …

<? pag\vskip-16pt?> Harnessing linear and angular momenta of light is one of the
cornerstones in modern optics and has found tremendous applications in optical circuits …

Polarization plays a key role in science; hence its versatile manipulation is crucial. Existing
polarization optics, however, can only manipulate polarization in a single transverse plane …

Thirty years ago, Coullet et al. proposed that a special optical field exists in laser cavities
bearing some analogy with the superfluid vortex. Since then, optical vortices have been …

Metasurfaces, which consist of arrays of subwavelength scatterers, can be used to precisely
control incident electromagnetic fields, but are typically static once fabricated. A dynamically …

Optical metamaterials have presented an innovative method of manipulating light.
Hyperbolic metamaterials have an extremely high anisotropy with a hyperbolic dispersion …

The past decade has witnessed dramatic progress related to various aspects of emergent
topological polar textures in oxide nanostructures displaying vortices, skyrmions, merons …

The recently proposed digital coding metasurfaces make it possible to control
electromagnetic (EM) waves in real time, and allow the implementation of many different …

Dynamically controlling terahertz (THz) wavefronts in a designable fashion is highly desired
in practice. However, available methods working at microwave frequencies do not work well …

Allowing subwavelength-scale-digitization of optical wavefronts to achieve complete control
of light at interfaces, metasurfaces are particularly suited for the realization of planar phase …