All-dielectric metamaterials and metasurfaces have been demonstrated as ideal platforms to
manipulate electromagnetic waves and enhance light–matter interaction. Analogous to …

From theoretical model to experimental realization, the bound state in the continuum (BIC) is
an emerging area of research interest in the last decade. In the initial years, well-established …

We discuss the recent advances in meta-optics and nanophotonics associated with the
physics of bound states in the continuum (BICs). Such resonant states appear due to a …

Unidirectional radiation is important for various optoelectronic applications, such as lasers,
grating couplers and optical antennas. However, almost all existing unidirectional emitters …

Control over the directionality of thermal emission plays a fundamental role in efficient heat
transport. Although nanophotonic technologies have demonstrated the capability for angular …

The scattering of electromagnetic waves lies at the heart of most experimental techniques
over nearly the entire electromagnetic spectrum, ranging from radio waves to optics and x …

The polarization singularity in momentum space has recently been discovered as a new
class of topological signatures of Bloch modes in photonic crystal slabs concerning the far …

Higher-order topological insulators are a recently discovered class of materials that can
possess zero-dimensional localized states regardless of the dimension of the system. Here …

The vortex, a fundamental topological excitation featuring the in-plane winding of a vector
field, is important in various areas such as fluid dynamics, liquid crystals, and …

We demonstrate by breaking the C 6 symmetry for higher-order at-Γ bound states in the
continuum (BICs) with topological charge-2 in photonic crystals (i) deterministic generation …