Lightweight, miniaturized optical imaging systems are vastly anticipated in these fields of
aerospace exploration, industrial vision, consumer electronics, and medical imaging …

Recent years have witnessed promising artificial intelligence (AI) applications in many
disciplines, including optics, engineering, medicine, economics, and education. In particular …

Nanostructured surfaces with designed optical functionalities, such as metasurfaces, allow
efficient harvesting of light at the nanoscale, enhancing light–matter interactions for a wide …

The success of semiconductor electronics is built on the creation of compact, low-power
switching elements that offer routing, logic and memory functions. The availability of …

Metasurfaces, a two-dimensional (2D) form of metamaterials constituted by planar meta-
atoms, exhibit exotic abilities to tailor electromagnetic (EM) waves freely. Over the past …

A meta‐lens is an advanced flat optical device composed of artificial antennas. The
amplitude, phase, and polarization of incident light can be engineered to satisfy the …

Metasurfaces, ultrathin metamaterials constructed by planar meta-atoms with tailored
electromagnetic (EM) responses, have attracted tremendous attention due to their exotic …

Compact varifocal lenses are essential to various imaging and vision technologies.
However, existing varifocal elements typically rely on mechanically actuated systems with …

Metasurfaces offer the possibility to shape optical wavefronts with an ultracompact, planar
form factor. However, most metasurfaces are static, and their optical functions are fixed after …

The ever-increasing demand for miniaturized optical systems has placed stringent
requirements on the core element: lenses. Developing ultrathin flat lenses with a varifocal …