What we believe is a new scheme for producing semidiscrete self-trapped vortices (“swirling
photon droplets”) in photonic crystals with competing quadratic (χ^(2)) and self-defocusing …

Abstract In conventional one-dimensional (1-D) photonic crystals (PhCs) consisting of
isotropic dielectrics, photonic bandgaps (PBGs) exhibit weak polarization-dependent …

Optical vortices, as solutions to the wave equation, remain stable under ideal theoretical
conditions. However, in experiments where beams produced with holograms and spatial …

Imbert-Fedorov (IF) shift of Gaussian beams has been widely studied, while the IF shift of
singular beams carrying Orbital Angular Momentum (OAM) also shows unique properties …

A metasurface design scheme is proposed based on reflective double vertical U-shaped
resonators. Compared to planar resonators with the same parameters, vertical meta-atom …

We theoretically propose and demonstrate topological parabolic umbilic beams (PUBs) with
high-dimensional caustic by mapping catastrophe theory into optics. The PUBs are first …

We present a novel method for generating optical vortex needle beams (focused optical
vortices with extended depth-of-focus) using a compact flat multilevel diffractive lens (MDL) …

We present an analysis of the enhanced spin Hall effect of light (SHEL) resulting from a
reflected Airy beam off the interface of an air-topological insulator (TI). Our study suggests …

High effective spin Hall efficiency and low magnetic damping constant are essential to
achieve efficient spin-charge conversion for energy-efficient spintronic devices. We report …

The generation and control of the Goos-Hänchen (GH) shift is a vital step toward its realistic
applications, but investigations have mainly been limited to the directional-dependent ones; …