Flat optics has emerged as a key player in the area of structured light and its applications,
owing to its subwavelength resolution, ease of integration, and compact footprint. Although …

The field of 3D micro‐optics is rapidly expanding, and essential advances in femtosecond
laser direct‐write 3D multi‐photon lithography (MPL, also known as two‐photon or multi …

The all‐optical diffractive deep neural networks (D2NNs) framework as a hardware platform
is demonstrated to implement various advanced functional meta‐devices with high …

As one of the most ideal display approaches, holographic 3-dimensional (3D) display has
always been a research hotspot since the holographic images reproduced in such system …

BACKGROUND Optical vortices provide one of the promising solutions for enhancing the
capacity of data multiplexing to meet an unprecedented growth in big data and internet traffic …

The term Poincaré beam, which describes the space-variant polarization of a light beam
carrying spin angular momentum (SAM) and orbital angular momentum (OAM), plays an …

Structured waves are ubiquitous for all areas of wave physics, both classical and quantum,
where the wavefields are inhomogeneous and cannot be approximated by a single plane …

Projecting high-quality three-dimensional (3D) scenes via computer-generated holography
is a sought-after goal for virtual and augmented reality, human–computer interaction and …

Abstract Information security is of great importance in every aspect of life, spawning
numerous modern cryptographic strategies to protect data from stealing and deciphering …

The three primary colour model, ie, red, green, and blue model, based on the colour
perception of the human eye, has been widely used in colour imaging. The most common …