Metasurfaces have recently risen to prominence in optical research, providing unique
functionalities that can be used for imaging, beam forming, holography, polarimetry, and …

Circularly polarized light sources with free-space directional emission play a key role in
chiroptics, spintronics, valleytronics and asymmetric photocatalysis. However, conventional …

The emerging all-dielectric platform exhibits high-quality (Q) resonances governed by the
physics of bound states in the continuum (BIC) that drives highly efficient nonlinear optical …

In this work, we utilize thin dielectric meta-atoms placed on a silver substrate to efficiently
enhance and manipulate the third-harmonic generation. We theoretically and experimentally …

Visible light manipulation has become a well-explored subject over recent years owing to its
fascinating prospect in the optical communication field. Nevertheless, the limitations …

Nonlinear nanophotonic devices have shown great potential for on‐chip information
processing, quantum source, 3D microfabrication, greatly promoting the developments of …

A novel asymmetric all-dielectric metasurface supporting multiple Fano resonances with
high quality-factor through the excitation of quasi-bound states in the continuum is …

The terahertz (THz) metasurfaces that support bound states in the continuum (BICs) provide
a promising platform for various applications due to their high Q-factor resonance. In this …

Vortex beams are currently drawing a great deal of interest, from fundamental research to
several promising applications. While their generation in bulky optical devices limits their …

We demonstrate that AlGaAs thin films and metasurfaces generate a distinct intrinsic
nonlinear geometric phase in their second harmonic signals, differing significantly from …