Metasurfaces are ultrathin metamaterials consisting of planar electromagnetic (EM)
microstructures (eg, meta-atoms) with pre-determined EM responses arranged in specific …

In the wake of intense research on metamaterials the two-dimensional analogue, known as
metasurfaces, has attracted progressively increasing attention in recent years due to the …

A mechanically reconfigurable metasurface that can continuously tune the wavefront is
demonstrated in the visible frequency range by changing the lattice constant of a complex …

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 …

The research and development of optical metasurfaces has been primarily driven by the
curiosity for novel optical phenomena that are unattainable from materials that exist in nature …

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

Optical chiral metamaterials have recently attracted considerable attention because they
offer new and exciting opportunities for fundamental research and practical applications …

Metasurfaces offer great opportunities to control electromagnetic (EM) waves, but currently
most metadevices work either in pure reflection or pure transmission mode, leaving half of …

Chiral hybrid perovskites show promise for advanced spin-resolved optoelectronics due to
their excellent polarization-sensitive properties. However, chiral perovskites developed to …

Vortex beams have been extensively realized using different approaches. Typically, the
efficiency and bandwidth of a vortex beam are limited by impure copolarized components …