Control over the dispersion of the refractive index is essential to the performance of most
modern optical systems. These range from laboratory microscopes to optical fibres and even …

Infrared optical systems are indispensable in almost all domains of society, but their
performances are often restricted by bulky size, small field of view, large thermal sensitivity …

With inherent orthogonality, both the spin angular momentum (SAM) and orbital angular
momentum (OAM) of photons have been utilized to expand the dimensions of quantum …

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

Metamaterials are artificial structures with the ability to efficiently control light‐field, attracting
intensive attention in the past few decades. People have studied the working principles …

Metalenses are nanostructured surfaces that mimic the functionality of optical elements.
Many exciting demonstrations have already been made, for example, focusing into …

Wide-angle imaging is an important function in photography and projection, but it also
places high demands on the design of the imaging components of a camera. To eliminate …

Recent advances in artificial subwavelength structures promise the realization of ultrathin,
lightweight, and flat metalens, providing a potential candidate for traditional bulky and …

In the past centuries, the scale of engineering optics has evolved toward two opposite
directions: one is represented by giant telescopes with apertures larger than tens of meters …

Based on the principle of super-symmetric lens with quadratic phase gradient
transformation, combined with the principle of digital coding of metasurface, we propose a …