During the past few years, metasurfaces have been used to demonstrate optical elements
and systems with capabilities that surpass those of conventional diffractive optics. Here, we …

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 …

Electronic digital convolutions could extract key features of objects for data processing and
information identification in artificial intelligence, but they are time-cost and energy …

Polarization is a degree of freedom of light carrying important information that is usually
absent in intensity and spectral content. Imaging polarimetry is the process of determining …

Flat optical devices thinner than a wavelength promise to replace conventional free-space
components for wavefront and polarization control. Transmissive flat lenses are particularly …

The angular response of thin diffractive optical elements is highly correlated. For example,
the angles of incidence and diffraction of a grating are locked through the grating momentum …

Metasurfaces are nanostructured devices composed of arrays of subwavelength scatterers
(or meta-atoms) that manipulate the wavefront, polarization, or intensity of light. Like most …

Conventional imaging systems comprise large and expensive optical components that
successively mitigate aberrations. Metasurface optics offers a route to miniaturize imaging …

Nanoscale optical resonators enable a new class of flat optical components called
metasurfaces. This approach has been used to demonstrate functionalities such as focusing …

Dielectric metasurfaces are two‐dimensional structures composed of nano‐scatterers that
manipulate the phase and polarization of optical waves with subwavelength spatial …