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

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 …

Here we present a roadmap on Photonic metasurfaces. This document consists of a number
of perspective articles on different applications, challenge areas or technologies underlying …

The size and operating energy of a nonlinear optical device are fundamentally constrained
by the weakness of the nonlinear optical response of common materials. Here, we report …

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 …

A time-dependent change in the refractive index of a material leads to a change in the
frequency of an optical beam passing through that medium. Here, we experimentally …

Single-photon source in micro-or nanoscale is the basic building block of on-chip quantum
information and scalable quantum network. Enhanced spontaneous emission based on …

As a basic building block, optical resonant cavities (ORCs) are widely used in light
manipulation. They can confine electromagnetic waves and improve the interaction between …

Epsilon-near-zero (ENZ) materials, when probed at or near wavelengths corresponding to
their zero permittivity crossing points, have unique and interesting properties that can be …

Recently, materials with vanishingly small permittivity, known as epsilon‐near‐zero (ENZ)
media, emerged as promising candidates to achieve nonlinear optical effects of …