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

Luminescence anti‐counterfeiting derives from the easily changeable luminescence
behaviors of luminescence materials under the regulation of various external stimuli (such …

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 …

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 …

Thermochromic fluorescent materials (TFMs) characterized by noticeable emission color
variation with temperature have attracted pervasive attention for their frontier application in …

Abstract Information security is of great importance in every aspect of life, spawning
numerous modern cryptographic strategies to protect data from stealing and deciphering …

Polarization optics plays a pivotal role in diffractive, refractive, and emerging flat optics, and
has been widely employed in contemporary optical industries and daily life. Advanced …

Metasurfaces, composed of specifically designed subwavelength units in a two-dimensional
plane, offer a new paradigm to design ultracompact optical elements that show great …

Malus' law regulating the intensity of light when passed through a polarizer, forms the solid
basis for image steganography based on orthogonal polarizations of light to convey hidden …