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 …

Metasurfaces, which offer a diverse range of functionalities in a remarkably compact size,
have captured the interest of both scientific and industrial sectors. However, their inherent …

High quality (Q) factor optical resonators are indispensable for many photonic devices.
While very large Q-factors can be obtained theoretically in guided-mode settings, free-space …

Nanostructured surfaces with designed optical functionalities, such as metasurfaces, allow
efficient harvesting of light at the nanoscale, enhancing light–matter interactions for a wide …

Plasmon resonances play a pivotal role in enhancing light-matter interactions in
nanophotonics, but their low-quality factors have hindered applications demanding high …

Hyperspectral imaging is vital for material identification but traditional systems are bulky,
hindering the development of compact systems. While previous metasurfaces address …

Meta-lenses composed of artificial meta-atoms have stimulated substantial interest due to
their compact and flexible wavefront sha** capabilities, outperforming bulk optical …

The physics of bound states in the continuum (BICs) allows the design and demonstration of
optical resonant structures with large values of the quality factor (Q factor) by employing …

We review the physics and some applications of photonic structures designed for the
realization of strong nonlinear chiroptical response. We pay much attention to the recent …

Nonlocal effects originating from interactions between neighboring meta-atoms introduce
additional degrees of freedom for peculiar characteristics of metadevices, such as …