We review the basic physics and applications of a special class of planar metamaterials,
often called metasurfaces, which are composed of optically thin and densely packed planar …

In the past centuries, the scale of engineering optics has evolved toward two opposite
directions: one is represented by giant telescopes with apertures larger than tens of meters …

The catenary is the curve that a free-hanging chain assumes under its own weight, and
thought to be a “true mathematical and mechanical form” in architecture by Robert Hooke in …

Metasurfaces are artificially structured thin films with unusual properties on demand.
Different from metamaterials, the metasurfaces change the electromagnetic waves mainly by …

Metamaterials open up various exotic means to control electromagnetic waves and among
them polarization manipulations with metamaterials have attracted intense attention. As of …

Recent advances in artificial subwavelength structures promise the realization of ultrathin,
lightweight, and flat metalens, providing a potential candidate for traditional bulky and …

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

Abstract In 1860s, Gustav Kirchhoff proposed his famous law of thermal radiation, setting a
fundamental contradiction between the infrared reflection and thermal radiation. Here, for …

Conventional optics is diffraction limited due to the cutoff of spatial frequency components,
and evanescent waves allow subdiffraction optics at the cost of complex near‐field …

Metasurfaces with intense spin–orbit interactions (SOIs) offer an appealing platform for
manipulation of polarization and wavefront. Reconfigurable beam manipulation based on …