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 …

Metasurfaces have been continuously garnering attention in both scientific and industrial
fields, owing to their unprecedented wavefront manipulation capabilities using arranged …

Noise is usually undesired yet inevitable in science and engineering. However, by
introducing the engineered noise to the precise solution of Jones matrix elements, we break …

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 …

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 …

Over the last two decades, the capabilities of metasurfaces in light modulation with
subwavelength thickness have been proven, and metasurfaces are expected to miniaturize …

Metamaterials are composed of periodic subwavelength metallic/dielectric structures that
resonantly couple to the electric and magnetic fields of the incident electromagnetic waves …

Nano-optic imagers that modulate light at sub-wavelength scales could enable new
applications in diverse domains ranging from robotics to medicine. Although metasurface …