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 …

Ultrathin dielectric gaps between metals can trap plasmonic optical modes with surprisingly
low loss and with volumes below 1 nm3. We review the origin and subtle properties of these …

Wearable/flexible electronic sensing systems are considered to be one of the key
technologies in the next generation of smart personal electronics. To realize personal …

Plasmonic structures exhibit promising applications in high‐resolution and durable color
generation. Research on advanced hybrid plasmonic materials that allow dynamically …

Plasmonic metasurfaces are a promising route for flat panel display applications due to their
full color gamut and high spatial resolution. However, this plasmonic coloration cannot be …

Multispectral imaging plays an important role in many applications, from astronomical
imaging and earth observation to biomedical imaging. However, current technologies are …

Thermal detectors, such as bolometric, pyroelectric and thermoelectric devices, are uniquely
capable of sensing incident radiation for any electromagnetic frequency; however, the …

Two-dimensional semiconducting transition metal dichalcogenides (TMDCs) have recently
become attractive materials for several optoelectronic applications, such as photodetection …

Structural colors arising from all-dielectric nanostructures are very promising for high-
resolution color nanoprinting and high-density optical storage. However, once the all …

Optical metasurfaces, composed of ultrathin subwavelength meta-atoms, have enabled flat-
optics and corresponding flat optical components such as ultrathin lenses, color filters, and …