Controlling electromagnetic waves and information simultaneously by information
metasurfaces is of central importance in modern society. Intelligent metasurfaces are smart …

This article reviews recent progress leading to the realization of planar optical components
made of a single layer of phase shifting nanostructures. After introducing the principles of …

Optical superoscillations are rapid, subwavelength spatial variations of the intensity and
phase of light, occurring in complex electromagnetic fields formed by the interference of …

The refractive-lens technique has been well developed over a long period of evolution,
offering powerful imaging functionalities, such as microscopes, telescopes, and …

The fractional Schrödinger equation (FSE)—a natural extension of the standard Schrödinger
equation—is the basis of fractional quantum mechanics. It can be obtained by replacing the …

The phenomenon of superoscillation produces oscillations that are faster than the fastest
Fourier component of a system, potentially forming a local “hot spot” with a size below the …

Tailoring the electromagnetic responses by metasurface greatly expands one's capabilities
to manipulate light in a controlled manner. Either amplitude or phase of the incident wave …

Superoscillations are band-limited functions with the counterintuitive property that they can
vary arbitrarily faster than their fastest Fourier component, over arbitrarily long intervals …

As artificial 2D materials made of subwavelength inclusions, metasurfaces bear exotic
optical and electromagnetic properties not obtainable in naturally occurring materials. Based …

The resolution of conventional optical elements and systems has long been perceived to
satisfy the classic Rayleigh criterion. Paramount efforts have been made to develop different …