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 …

The field of metamaterials has opened landscapes of possibilities in basic science, and a
paradigm shift in the way we think about and design emergent material properties. In many …

By applying the optical nanocircuit concepts to metasurfaces, we propose an effective route
to locally control light transmission over a deeply subwavelength scale. This concept …

Plasmonic antennas enable the conversion of light from free space into subwavelength
volumes and vice versa, which facilitates the manipulation of light at the nanoscale. Dynamic …

The ability to convert low-energy quanta into a quantum of higher energy is of great interest
for a variety of applications, including bioimaging, drug delivery and photovoltaics. Although …

Resonant dielectric nanoparticles made of materials with large positive dielectric permittivity,
such as Si, GaP, GaAs, have become a powerful platform for modern light science, enabling …

Efficient amplification of spoof surface plasmon polaritons (SPPs) is proposed at microwave
frequencies by using a subwavelength‐scale amplifier. For this purpose, a special …

Surface plasmons excited by light in metal structures provide a means for manipulating
optical energy at the nanoscale. Plasmons are associated with the collective oscillations of …

In modern integrated circuits and wireless communication devices or systems, three key
features need to be solved simultaneously to reach higher performance and more compact …

Narrow bandwidth is a fundamental issue plaguing practical applications of metamaterial
absorbers. In this Letter, we show that by deliberately controlling the dispersion and …