Exceptional points (EPs) arising in non-Hermitian systems have led to a variety of intriguing
wave phenomena, and have been attracting increased interest in various physical platforms …

Metasurfaces are 2D artificial materials consisting of arrays of metamolecules, which are
exquisitely designed to manipulate light in terms of amplitude, phase, and polarization state …

Recently, exceptional points, a degeneracy of open wave systems, have been observed in
photonics, acoustics, and electronics. They have mainly been realized as a degeneracy of …

Resonant scattering, guided mode propagation phase, and/or orientation-dependent phase
retardations are the three main mechanisms used to date to conceive optical metasurfaces …

Quantitative determination and in situ monitoring of molecular chirality at extremely low
concentrations is still challenging with simple optics because of the molecular-scale …

This Review focuses on the integration of plasmonic and dielectric metasurfaces with
emissive or stimuli-responsive materials for manipulating light–matter interactions at the …

The term whispering gallery mode (WGM) was first introduced to describe the curvilinear
propagation of sound waves under a cathedral dome. The physical concept has now been …

The full manipulation of intrinsic properties of electromagnetic waves has become the
central target in various modern optical technologies. Optical metasurfaces have been …

Exceptional points are spectral singularities in open quantum and wave systems that exhibit
a strong spectral response to perturbations. This feature can be exploited for a new …

Exceptional points (EP) are non-Hermitian degeneracies where eigenvalues and their
corresponding eigenvectors coalesce,,–. Recently, EPs have attracted attention as a means …