We introduce a new paradigm for generating high-purity vortex beams with metasurfaces. By
applying optical neural networks to a system of cascaded phase-only metasurfaces, we …

Sorting orbital angular momentum (OAM) and spin angular momentum (SAM) of photons is
crucial for optical communications, optical storage, and quantum information processing …

In this paper, we propose a highly sensitive, four-band, high-frequency detector with a
perfectly tunable absorber based on Dirac semimetals. The design architecture relies on a …

Object identification and three-dimensional reconstruction techniques are always attractive
research interests in machine vision, virtual reality, augmented reality, and biomedical …

Tunable Airy beams with controllable propagation trajectories have sparked interest in
various fields, such as optical manipulation and laser fabrication. Existing research …

Catenary optics enables metasurfaces with higher efficiency and wider bandwidth, and is
highly anticipated in the imaging system, super-resolution lithography, and broadband …

Optical materials and devices designed based on traditional materials tend to be
monofunctional and cannot be dynamically changed according to application requirements …

The conversion of incoming electromagnetic-waves into vortex waves by electromagnetic-
wave absorption materials (EAMs) is expected to improve the absorption properties, but …

Abstract Information security is particularly important in the information age. Traditional
optical encryption devices rely on phase, amplitude, and even polarization modulation, with …

Infrared band occupies a very important position in the electromagnetic wave band.
Traditional infrared devices use the inherent properties of natural materials to achieve the …