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 …

Recently, 2D transition metal dichalcogenides (TMDs) have become intriguing materials in
the versatile field of photonics and optoelectronics because of their strong light–matter …

Nanostructured metasurfaces demonstrate extraordinary capabilities to control light at the
subwavelength scale, emerging as key optical components to physical realization of …

Localized optical resonances in metallic nanostructures have been increasingly used in
color printing, demonstrating unprecedented resolution but limited in color gamut. Here, we …

While structural colors are ubiquitous in nature, saturated reds are mysteriously absent. This
long-standing problem of achieving Schrödinger's red demands sharp transitions from …

The dielectric metasurface hologram promises higher efficiencies due to lower absorption
than its plasmonic counterpart. However, it has only been used, up to now, for controlling …

Impressive properties arise from the atomically thin nature of transition metal dichalcogenide
two-dimensional materials. However, being atomically thin limits their optical absorption or …

Squeezing light into nanometer-sized metallic nanogaps can generate extremely high near-
field intensities, resulting in dramatically enhanced absorption, emission, and Raman …

Optical materials with centrosymmetry, such as silicon and germanium, are unfortunately
absent of second‐order nonlinear optical responses, hindering their developments in …

Conspectus Rationally assembled nanostructures exhibit distinct physical and chemical
properties beyond their individual units. Developments in nanofabrication techniques have …