Optical metasurfaces—subwavelength-patterned surfaces that interact strongly with light—
have been an active area of research for more than a decade. The field has been driven by …

The growing maturity of nanofabrication has ushered massive sophisticated optical
structures available on a photonic chip. The integration of subwavelength-structured …

<? 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 …

In this paper, a novel optical logic operator based on the multifunctional metasurface driven
by all‐optical diffractive neural network is reported, which can perform four principal …

BACKGROUND Optical vortices provide one of the promising solutions for enhancing the
capacity of data multiplexing to meet an unprecedented growth in big data and internet traffic …

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 …

The full manipulation of intrinsic properties of electromagnetic waves has become the
central target in various modern optical technologies. Optical metasurfaces have been …

Rapid progress in the development of metamaterials and metaphotonics allowed bulky
optical assemblies to be replaced with thin nanostructured films, often called metasurfaces …

Due to its unbounded and orthogonal modes, the orbital angular momentum (OAM) is
regarded as a key optical degree of freedom (DoF) for future information processing with …

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 …