Metasurfaces have attracted great attention due to their ability to manipulate the phase,
amplitude, and polarization of light in a compact form. Tunable metasurfaces have been …

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 …

Metalenses have shown a number of promising functionalities that are comparable with
conventional refractive lenses. However, current metalenses are still far from …

Printable metalenses composed of a silicon nanocomposite are developed to overcome the
manufacturing limitations of conventional metalenses. The nanocomposite is synthesized by …

Metasurfaces are composed of periodic sub-wavelength nanostructures and exhibit optical
properties that are not found in nature. They have been widely investigated for optical …

Metalens, a prominent application of two-dimensional metasurfaces, has demonstrated
powerful abilities even beyond traditional optical lenses. By manipulating the phase …

Metasurfaces have attracted widespread attention due to an increasing demand of compact
and wearable optical devices. For many applications, polarization-insensitive metasurfaces …

The high refractive index of hydrogenated amorphous silicon (a‐Si: H) at optical frequencies
is an essential property for the efficient modulation of the phase and amplitude of light …

Metasurfaces consisting of subwavelength structures, so‐called meta‐atoms, have steadily
attracted considerable attention for advanced holography due to their advantages in terms of …

Optical metasurfaces, composed of ultrathin subwavelength meta-atoms, have enabled flat-
optics and corresponding flat optical components such as ultrathin lenses, color filters, and …