Colloidal self-assembly refers to a solution-processed assembly of nanometer-/micrometer-
sized, well-dispersed particles into secondary structures, whose collective properties are …

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 …

Nanoscopic chiroptics studies the spin-dependent asymmetric light–matter interactions at
the nanoscale, where the asymmetry can stem from the intrinsic properties of materials …

Symmetric spin–orbit interaction (SOI)‐based approaches apply a practical limit on helicity
multiplexed metaoptics, ie, center symmetric information encoding. Contrarily, asymmetric …

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 …

Holography has attracted tremendous interest due to its capability of storing both the
amplitude and phase of light field and reproducing vivid three-dimensional scenes …

Metasurfaces have recently been used for multichannel image displays with pixel-size lower
than a wavelength, which indicates the potential application in ultracompact …

In this Letter, we introduce a new paradigm for achieving robust asymmetric generation of
acoustic vortex field through dual-layer metasurfaces by controlling their intrinsic topologic …

Dimers, two closely spaced metallic nanostructures, are one of the primary nanoscale
geometries in plasmonics, supporting high local field enhancements in their interparticle …

Unlike traditional optical components, which rely on the gradual accumulation of light along
the optical path over a distance much larger than the wavelength to form a wavefront …