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

Augmented reality (AR) display, which superimposes virtual images on ambient scene, can
visually blend the physical world and the digital world and thus opens a new vista for human …

Flat optics consisting of nanostructures of high–refractive index materials produce lenses
with thin form factors that tend to operate only at specific wavelengths. Recent attempts to …

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

Metasurfaces can modulate light with periodically arranged subwavelength scatterers, and
they can generate arbitrary wavefronts. Therefore, they can be used to realize various …

Space-time-modulated metasurfaces can manipulate electromagnetic waves in space and
frequency domains simultaneously. In this article, an analytical design of space-time …

As an artificial planar composite medium, optical metasurfaces exhibit powerful
multidimensional optical modulations at the subwavelength scale. With the aid of intelligent …

Hybrid components combining the optical power of a refractive and a diffractive optical
system can form compact doublet lenses that correct various aberrations. Unfortunately, the …

Meta-lens has successfully been developed for a variety of optical functions. We
demonstrate a light-field edge detection imaging system with a gallium nitride achromatic …

The periodic extension of phase difference is commonly applied in device design to obtain
phase compensation beyond the system's original phase modulation capabilities. Based on …