A Fully Phase-Modulated Metasurface as An Energy-Controllable Circular Polarization Router.

ABSTRACT: Geometric metasurfaces primarily follow the physical mechanism of Pancharatnam-Berry (PB) phases, empowering wavefront control of cross-polarized reflective/transmissive light components. However, inherently accompanying the cross-polarized components, the copolarized output components have not been attempted in parallel in existing works. Here, a general method is proposed to construct phase-modulated metasurfaces for implementing functionalities separately in co- and cross-polarized output fields under circularly polarized (CP) incidence, which is impossible to achieve with solely a geometric phase. By introducing a propagation phase as an additional degree of freedom, the electromagnetic (EM) energy carried by co- and cross-polarized transmitted fields can be fully phase-modulated with

SUBMITTER: Yuan Y 

PROVIDER: S-EPMC7509705 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature