Axicon is a versatile optical element for forming a zero-order Bessel beam, including high-
power laser radiation schemes. Nevertheless, it has drawbacks such as the produced …

Artificial microstructures, which allow us to control and change the properties of wave fields
through changing the geometrical parameters and the arrangements of microstructures …

Optical metasurfaces have shown unprecedented capabilities in the local manipulation of
the light's phase, intensity, and polarization profiles, and represent a new viable technology …

The investigation of converged twisted beams with a helical phase structure has a
remarkable impact on both fundamental physics and practical applications. Geometric …

Relative to conventional phase‐modulation optical elements, metasurfaces (ie, 2D versions
of metamaterials) have shown novel optical phenomena and promising functionalities with …

Metasurface-based holography presents opportunities for applications that include optical
displays, data storage, and optical encryption. Holograms that control polarization are …

Manipulating the polarization of light on the microscale or nanoscale is essential for
integrated photonics and quantum optical devices. Nowadays, the metasurface allows one …

Metasurfaces, planar metamaterials consisting of a single layer or several layers of artificial
structures, not only form the basis for fundamental physics research but also have …

Conventionally, the realization of polarization transformation and wavefront manipulation in
metasurfaces relies on the Pancharatnam–Berry (PB) phase together with the dynamic …

Terahertz beam splitters and polarization rotators are two typical devices with wide
applications ranging from terahertz communication to system integration. However, they are …