Time-varying media have recently emerged as a new paradigm for wave manipulation, due
to the synergy between the discovery of highly nonlinear materials, such as epsilon-near …

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

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 …

Nonlinear optical phenomena are crucial for a broad range of applications, such as
microscopy, all-optical data processing, and quantum information. However, materials …

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 …

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 …

Organic–inorganic hybrid perovskites have been intensively researched in the past decade
for their optoelectronic properties. The emergence of Ruddlesden–Popper perovskites …

Low‐dimensional (LD) materials demonstrate intriguing optical properties, which lead to
applications in diverse fields, such as photonics, biomedicine and energy. Due to …

New propagation regimes for light arise from the ability to tune the dielectric permittivity to
extremely low values. Here, we demonstrate a universal approach based on the low linear …

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 …