Photonic crystal (PC) is an emerging optical microstructure material with adjustable
dielectric constant, which can vary with its space periodically. It has exhibited excellent …

In recent years, notions drawn from non-Hermitian physics and parity–time (PT) symmetry
have attracted considerable attention. In particular, the realization that the interplay between …

In the past few years, concepts from non-Hermitian (NH) physics, originally developed within
the context of quantum field theories, have been successfully deployed over a wide range of …

High‐power laser sources are widely used in industrial precision processing and act as a
new platform for strong‐field physics research using peak power over petawatt. This review …

Honeycomb structures, inspired from bee honeycombs, had found widespread applications
in various fields, including architecture, transportation, mechanical engineering, chemical …

Through the use of the limited materials palette, optimally designed micro-and
nanostructures, and tightly regulated processes, nature demonstrates exquisite control of …

Nanomaterials with remarkable optical, mechanical, and electrical properties have shed
new light on various fields including optoelectronics, sensors, biomedicine, and ultrafast …

The development of new artificial structures and materials is today one of the major research
challenges in optics. In most studies so far, the design of such structures has been based on …

Polymer optical fiber (POF) level sensors have a lot of potential in liquid level sensing
because of their inherent safety, chemical corrosion resistance, anti-electromagnetic …

We describe the history, guiding mechanism, recent advances, applications, and future
prospects for hollow-core negative curvature fibers. We first review one-dimensional slab …