Optical metamaterials have presented an innovative method of manipulating light.
Hyperbolic metamaterials have an extremely high anisotropy with a hyperbolic dispersion …

Metasurfaces are ultrathin metamaterials consisting of planar electromagnetic (EM)
microstructures (eg, meta-atoms) with pre-determined EM responses arranged in specific …

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

Secret sharing is a well-established cryptographic primitive for storing highly sensitive
information like encryption keys for encoded data. It describes the problem of splitting a …

Metalenses consist of an array of optical nanoantennas on a surface capable of
manipulating the properties of an incoming light wavefront. Various flat optical components …

Metasurfaces have enabled a plethora of emerging functions within an ultrathin dimension,
paving way towards flat and highly integrated photonic devices. Despite the rapid progress …

Among various flat optical devices, metasurfaces have presented their great ability in
efficient manipulation of light fields and have been proposed for variety of devices with …

Compared with conventional optical elements, 2D photonic metasurfaces, consisting of
arrays of antennas with subwavelength thickness (the 'meta-atoms'), enable the …

Since its invention, holography has emerged as a powerful tool to fully reconstruct the
wavefronts of light including all the fundamental properties (amplitude, phase, polarization …

In the wake of intense research on metamaterials the two-dimensional analogue, known as
metasurfaces, has attracted progressively increasing attention in recent years due to the …