Chromatic aberration-free meta-devices (eg, achromatic meta-devices and abnormal
chromatic meta-devices) play an essential role in modern science and technology. However …

Metasurfaces provide a compact, flexible, and efficient platform to manipulate the
electromagnetic waves. However, chromatic aberration imposes severe restrictions on their …

Achromatic meta-lenses have shown great promise in ultracompact and full-color optical
devices. Their performances, including size, bandwidth, and numerical aperture, are …

A planar metasurface composed of electronically tunable meta-atoms incorporating voltage-
controlled varactor diodes is proposed as a reconfigurable meta-mirror for wavefronts …

Constructing a meta-lens with tunable meta-atoms with varactor diodes incorporated, we
can precisely control the phase profile of the meta-lens by varying the external voltages …

Dispersion is one of the key performances of optical systems. As a man‐made device,
metasurface is a notable alternative for dispersion manipulation and has been developed …

Dispersion engineering of metamaterials is critical yet not fully released in applications
where broadband and multispectral responses are desirable. Here we propose a strategy to …

The design of large-scale, high-numerical-aperture, and broadband achromatism is a big
challenge in metalens research. In fact, many colorful imaging systems have RGB color …

Meta-optics has achieved major breakthroughs in the past decade; however, conventional
forward design faces challenges as functionality complexity and device size scale up …

Achieving simultaneous control of the amplitude and phase of a metasurface, especially in
transmission geometry, is very essential in modern photonic research. An alternative …