Bound states in the continuum (BICs) with infinite quality factor (Q-factor) and significant field
enhancement pave the way for realizing highly sensitive optical sensors with enhanced light …

All-dielectric nanophotonics underpinned by the physics of bound states in the continuum
(BICs) have demonstrated breakthrough applications in nanoscale light manipulation …

We present strong enhancement of third harmonic generation in an amorphous silicon
metasurface consisting of elliptical nano resonators. We show that this enhancement …

Nonlinear optics is a well-established field of research that traditionally relies on the
interaction of light with macroscopic nonlinear media over distances significantly greater …

We present nonlinear optical four-wave mixing in a silicon nanodisk dimer metasurface.
Under the oblique incident plane waves, the designed metasurface exhibits a multiresonant …

The miniaturization of nonlinear light sources is central to the integrated photonic platform,
driving a quest for high-efficiency frequency generation and mixing at the nanoscale. In this …

Ultracompact devices for second harmonic generation (SHG) have broad applications in
various fields. In this study, we numerically demonstrate efficient SHG from a merged bound …

Fano resonance with high Q-factor is considered to play an important role in the field of
refractive index sensing. In this paper, we theoretically and experimentally investigate a …

High-refractive-index nanostructures offer versatile opportunities for nonlinear optical effects,
due to their ability to strongly confine field into a subwavelength scale. Herein, we propose a …

All‐dielectric metasurfaces supporting high‐Q resonances have emerged as a promising
platform for sensing applications. However, the greatly enhanced near‐fields are usually …