Lightweight, miniaturized optical imaging systems are vastly anticipated in these fields of
aerospace exploration, industrial vision, consumer electronics, and medical imaging …

Control over the dispersion of the refractive index is essential to the performance of most
modern optical systems. These range from laboratory microscopes to optical fibres and even …

A key goal of metalens research is to achieve wavefront shaping of light using optical
elements with thicknesses on the order of the wavelength. Such miniaturization is expected …

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

A meta‐lens is an advanced flat optical device composed of artificial antennas. The
amplitude, phase, and polarization of incident light can be engineered to satisfy the …

Scattering of electromagnetic waves by subwavelength objects is accompanied by the
excitation of electric and magnetic Mie resonances that may modify substantially the …

Metasurface is a recently developed nanophotonics concept to manipulate the properties of
light by replacing conventional bulky optical components with ultrathin (more than 104 times …

Metalenses have shown a number of promising functionalities that are comparable with
conventional refractive lenses. However, current metalenses are still far from …

Recently, there has been an explosion of interest in metalenses for imaging. The interest is
primarily based on their subwavelength thicknesses. Diffractive gratings have been used as …

The numerical aperture (NA) of a lens determines its ability to focus light and its resolving
capability. Having a large NA is a very desirable quality for applications requiring small light …