Efficient nonlinear optical interactions are essential for many applications in modern
photonics. However, they typically require intense laser sources and long interaction …

Structures with near-zero parameters (for example, media with near-zero relative permittivity
and/or relative permeability, and thus a near-zero refractive index) exhibit a number of …

The discovery, design and development of materials are critically linked to advances in
many areas of research, and optics is no exception. Recently, the spectral region in which …

Abstract Epsilon‐near‐zero (ENZ) photonics is the study of light–matter interactions in the
presence of structures with near‐zero permittivity and has been emerging as an important …

Metamaterials are being applied to the development and construction of many new devices
throughout the electromagnetic spectrum. Limitations posed by the metamaterial operational …

We fabricate and characterize a metal-dielectric nanostructure with an effective refractive
index n= 0 in the visible spectral range. Light is excited in the material at deep …

In recent years, the concept of metamaterials has offered platforms for unconventional
tailoring and manipulation of the light–matter interaction. Here we explore the notion of …

We introduce the acoustic equivalent of “supercoupling” by studying the anomalous sound
transmission and uniform energy squeezing through ultranarrow acoustic channels filled …

The anomalous transmission properties of zero-permittivity ultranarrow channels are used to
boost Kerr nonlinearities and achieve switching and bistable response for moderate optical …

It is well known that electromagnetic radiation from radiating elements (eg, antennas,
apertures, etc.) shows dependence on the element's geometry shape in terms of operating …