Bound states in the continuum (BICs) have attracted attention in photonics owing to their
interesting properties. For example, BICs can effectively confine light in a counterintuitive …

Bound states in the continuum (BICs) are waves that remain localized even though they
coexist with a continuous spectrum of radiating waves that can carry energy away. Their very …

Bound states in the continuum (BICs) can confine light with a theoretically infinite Q factor.
However, in practical on-chip resonators, scattering loss caused by inevitable fabrication …

We reveal that metasurfaces created by seemingly different lattices of (dielectric or metallic)
meta-atoms with broken in-plane symmetry can support sharp high-Q resonances arising …

Bound states in the continuum (BICs) confine resonances embedded in a continuous
spectrum by eliminating radiation loss. Merging multiple BICs provides a promising …

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

The study of resonant dielectric nanostructures with a high refractive index is a new research
direction in the nanoscale optics and metamaterial-inspired nanophotonics. Because of the …

Optical bound states in the continuum (BICs) have recently been realized in photonic crystal
slabs, where the disappearance of out-of-plane radiation turns leaky resonances into guided …

We present the first experimental demonstration of a new type of localized state in the
continuum, namely, compacton-like linear states in flat-band lattices. To this end, we employ …

Toroidal multipole moments are usually underestimated as they are quite weak in most
cases of light-matter interaction. Herein, we reveal a strong link between the toroidal dipole …