Flat optics has emerged as a key player in the area of structured light and its applications,
owing to its subwavelength resolution, ease of integration, and compact footprint. Although …

Recent years have witnessed promising artificial intelligence (AI) applications in many
disciplines, including optics, engineering, medicine, economics, and education. In particular …

Metasurfaces are 2D artificial materials consisting of arrays of metamolecules, which are
exquisitely designed to manipulate light in terms of amplitude, phase, and polarization state …

Digital optical holograms can achieve nanometre-scale resolution as a result of recent
advances in metasurface technologies. This has raised hopes for applications in data …

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 …

Optically variable devices (OVDs) are in tremendous demand as optical indicators against
the increasing threat of counterfeiting. Conventional OVDs are exposed to the danger of …

The remarkable potential of metasurface holography promises revolutionary advancements
for imaging, chip-integrated augmented/virtual reality (AR/VR) technology, and flat optical …

Fueled by the rapid advancement of nanofabrication, metasurface has provided
unprecedented opportunities for 3D holography. Large depth 3D meta-holography not only …

Meta-holographic encryption is a potentially important technique for information security.
Despite rapid progresses in multi-tasked meta-holograms, the number of information …

The full manipulation of intrinsic properties of electromagnetic waves has become the
central target in various modern optical technologies. Optical metasurfaces have been …