Metasurfaces have attracted great attention due to their ability to manipulate the phase,
amplitude, and polarization of light in a compact form. Tunable metasurfaces have been …

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 …

The rapid detection of biological and chemical substances in real time is particularly
important for public health and environmental monitoring and in the military sector. If the …

The explosion in the amount of information that is being processed is prompting the need for
new computing systems beyond existing electronic computers. Photonic computing is …

Integrated-resonant units (IRUs), associating various meta-atoms, resonant modes, and
functionalities into one supercell, have been promising candidates for tailoring composite …

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

Spiral phase contrast imaging offers an excellent opportunity to observe non‐labeled
biological samples with slight variations in refractive index or thickness. However, the overall …

In the field of nanophotonics, metasurfaces have come to the forefront in real‐world
applications, owing to their accessible exotic optical properties that can be readily designed …

With the great promise to reshape the landscape of photonic integrated circuits (PIC), the
introduction of metasurface onto optical waveguide integration gives rise to tremendous …