BACKGROUND Future high-performance portable and wearable optical devices and
systems with small footprints and low weights will require components with small form …

Metasurfaces offer a unique platform to precisely control optical wavefronts and enable the
realization of flat lenses, or metalenses, which have the potential to substantially reduce the …

Metasurfaces provide a versatile platform for manipulating the wavefront of light using planar
nanostructured surfaces. Transmissive metasurfaces, with full 2π phase control, are a …

Metasurface optics provide an ultrathin alternative to conventional refractive lenses. A
present challenge is in realizing metasurfaces that exhibit tunable optical properties and …

We present recent advances in metasurface-based photonics, which enables the realization
of high performance planar lenses (metalenses) in the visible spectrum. They are enabled …

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 …

Metalenses comprised of artificial subwavelength structures known as meta-atoms have
demonstrated abilities beyond conventional bulky optical components by modulating the …

Metasurfaces enable the redesign of optical components into thin, planar and multifunctional
elements, promising a major reduction in footprint and system complexity as well as the …

Among various flat optical devices, metasurfaces have presented their great ability in
efficient manipulation of light fields and have been proposed for variety of devices with …

Metasurfaces are planar optical elements that hold promise for overcoming the limitations of
refractive and conventional diffractive optics. Previous metasurfaces have been limited to …