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 …

Recent research in topological photonics has not only proposed and realized novel
topological phenomena such as one‐way broadband propagation and robust transport of …

Wavelength-scale lasers provide promising applications through low power consumption
requiring for optical cavities with increased quality factors. Cavity radiative losses can be …

The development of classical and quantum information–processing technology calls for on-
chip integrated sources of structured light. Although integrated vortex microlasers have been …

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 …

Optical vortices, beams with spiral wavefronts and screw phase dislocations, have been
attracting increasing interest in various fields. Here, we theoretically propose and …

Nonradiating sources of energy have traditionally been studied in quantum mechanics and
astrophysics but have received very little attention in the photonics community. This situation …

Metasurfaces are subwavelength structured thin films consisting of arrays of units that allow
the control of polarization, phase, and amplitude of light over a subwavelength thickness …

Bound states in the continuum (BICs) are a striking example of how a solution to a simple
problem of quantum mechanics, obtained about a century ago, can serve as an incentive to …

Highly compact lasers with ultra-low threshold and single-mode continuous wave (CW)
operation have been a long sought-after component for photonic integrated circuits (PICs) …