Reconfigurable optical metasurfaces are rapidly emerging as a major frontier in photonics
research, development and commercialization. They promise compact, lightweight and …

The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …

A quasi-bound state in the continuum (QBIC) has unique attraction in optical switch,
nonlinearity, communication, and sensing due to its ultrahigh radiation quality (Q) factor. The …

I review the four mechanisms of bound states in the continuum (BICs) in the application of
microwave and acoustic cavities open to directional waveguides. The most simple are …

The concept of a quasi‐bound state in a continuum (QBIC) has garnered significant attention
in various fields such as sensing, communication, and optical switching. Within …

Epsilon-near-zero and epsilon near-pole materials enable reflective systems supporting a
class of symmetry-protected and accidental embedded eigenstates (EEs) characterized by a …

Tunable optical metasurfaces (MSs) have demonstrated exceptional capabilities in actively
manipulating light fields. However, most existing tunable MSs are limited to controlling only …

Ultrafast manipulation of light polarization is crucial in many nonlinear optic and
optoelectronic operations. However, most of the configurations are suffering from low …

Photonics and optoelectronics are at the foundations of widespread technologies, from high-
speed internet to systems for artificial intelligence, LiDAR, and optical quantum computing …

Dielectric Mie nanoresonators showing strong light–matter interaction at the nanoscale may
enable new functionality in photonic devices, such as strong magneto‐optical effects …