BACKGROUND The generation and control of coherent electromagnetic waves, such as
those provided by electronic oscillators in the radio frequency domain or lasers in the optical …

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

Over the past few years, progress in hollow-core optical fiber technology has reduced the
attenuation of these fibers to levels comparable to those of all-solid silica-core single-mode …

Improved analytical tools are urgently required to identify degradation and failure
mechanisms in Li-ion batteries. However, understanding and ultimately avoiding these …

In solid state physics, a bandgap (BG) refers to a range of energies where no electronic
states can exist. This concept was extended to classical waves, spawning the entire fields 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 …

Colloidal photonic crystals (PCs) have been well developed because they are easy to
prepare, cost‐effective, and versatile with regards to modification and functionalization …

Defect modes in two-dimensional periodic photonic structures have found use in diverse
optical devices. For example, photonic crystal cavities confine optical modes to …

This paper describes a gas detection sensor that is based on a microstructured-core
photonic crystal fiber (PCF). The finite element method (FEM) is used to analyze the …

Relying on abrupt phase discontinuities, metasurfaces characterized by a transversely
inhomogeneous surface impedance profile have been recently explored as an ultrathin …