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

Integrated-resonant units (IRUs), associating various meta-atoms, resonant modes, and
functionalities into one supercell, have been promising candidates for tailoring composite …

Metasurfaces are ushering in an era of multifunctional control over optical wavefronts
realized with ultrathin planarized devices. Recent advances have been enabling …

High-index dielectric nanostructures can support optical resonances of electric and
magnetic character with ultralow linear absorption. In contrast to plasmonics, they can be …

Chirality describes mirror symmetry breaking in geometric structures or certain physical
quantities. The interaction between chiral structure and chiral light provides a rich collection …

Actively tunable and reconfigurable wavefront shaping by optical metasurfaces poses a
significant technical challenge often requiring unconventional materials engineering and …

Fano resonances are conventionally understood as sharp spectral features with selectivity in
the momentum-frequency domain, implying that they can be excited only by plane waves …

In the past decade, symmetry-protected bound states in the continuum (BICs) have proven to
be an important design principle for creating and enhancing devices reliant upon states with …

Planar all-dielectric photonic crystals or metasurfaces host various resonant eigenmodes
including leaky guided mode resonances (GMR) and bound states in the continuum (BIC) …

For observing high-Q quasi-bound states in the continuum (BIC), the metasurfaces should
be made of high-index materials, restricting their applications due to the limited material …