Metasurface-based nanoprinting (meta-nanoprinting) has fully demonstrated its advantages
in ultrahigh-density grayscale/color image recording and display. A typical meta …

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 …

Optical encryption is a promising approach to protecting secret information owing to the
advantages of low-power consumption, parallel, high-speed, and multi-dimensional …

Monochromatic light can be characterized by its three fundamental properties: amplitude,
phase, and polarization. In this work, we propose a versatile, transmission-mode all …

As a fundamental property of light, polarization serves as an excellent information encoding
carrier, playing significant roles in many optical applications, including liquid crystal …

Optical metasurfaces can offer high-quality multichannel displays by modulating different
degrees of freedom of light, demonstrating great potential in the next generation of optical …

Metasurfaces, a two-dimensional (2D) form of metamaterials constituted by planar meta-
atoms, exhibit exotic abilities to tailor electromagnetic (EM) waves freely. Over the past …

Pancharatnam-Berry geometric phase has attracted enormous interest in subwavelength
optics and electromagnetics during the past several decades. Traditional theory predicts that …

The three primary colour model, ie, red, green, and blue model, based on the colour
perception of the human eye, has been widely used in colour imaging. The most common …

Multi‐functional metasurfaces have attracted great attention due to the significant
possibilities to realize highly integrated and ultra‐compact meta‐devices. Merging nano …