Superposing two or more periodic structures to form moiré patterns is emerging as a
promising platform to confine and manipulate light. However, moiré-facilitated interactions …

The utilization of photonic bound states in the continuum (BIC) is a very attractive approach
for many applications requiring efficient resonators. High-Q modes related to symmetry …

Optical metasurfaces have recently emerged as the game changer in light manipulation and
opened up new perspectives in many subfields of optics and photonics. Recent …

Various optical phenomena can be induced in periodic arrays of nanoparticles by the
radiative coupling of the local dipoles in each particle. Probably the most impressive …

We experimentally observe lasing in a hexamer plasmonic lattice and find that, when tuning
the scale of the unit cell, the polarization properties of the emission change. By a theoretical …

Multicolor light sources can be used in applications such as lighting and multiplexing
signals. In photonic and plasmonic systems, one way to achieve multicolor light is via …

Advancing on previous reports, we utilize quasi-bound states in the continuum (q-BICs)
supported by a metasurface of TiO_2 meta-atoms with broken inversion symmetry on an …

Optical bound states in the continuum (BICs), realizing substantial suppression of out‐of‐
plane radiative losses, have been utilized to realize strong light confinement and optical …

We experimentally observe the quantum geometric tensor, namely, the quantum metric and
the Berry curvature, for a square lattice of radiatively coupled plasmonic nanoparticles. We …

We numerically investigate linear and nonlinear optical responses in metasurfaces
consisting of Au double-gap split ring resonators (DSRRs). Symmetry-protected dual bound …