Non-Hermitian optics is a burgeoning field at the intersection of quantum physics,
electrodynamics, and nanophotonics. It provides a new perspective of the role of gain and …

Light can be tailored to carry angular momentum well beyond the restriction of its two spin
states, left-and right-circularly polarized light, by imbuing it with orbital angular momentum …

Geometric arrays of vortices found in various systems owe their regular structure to mutual
interactions within a confined system. In optics, such vortex crystals may form spontaneously …

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 …

Integrated photonics, because of its intrinsic high speed, large bandwidth and unlimited
parallelism, is critical in the drive to ease the increasing data traffic. Its technological enabler …

A step towards the next generation of high-capacity, noise-resilient communication and
computing technologies is a substantial increase in the dimensionality of information space …

Loss-induced transparency (LIT), featuring the revival of optical intensity by adding loss, has
been demonstrated in classical optics. However, a fundamental question has remained …

Non-Hermitian skin effects (NHSEs) enrich the traditional band theories and give rise to
unique non-Hermitian topological properties. Here, we reveal a different type of NHSE …

Whispering-gallery microresonators have the potential to become the building blocks for
optical circuits. However, encoding information in an optical signal requires on-demand …

We propose a compact method to experimentally synthesize a class of vector beam arrays
with periodic higher-order Poincaré sphere (HOPS) polarization states by engineering the …