All-silicon reconfigurable metasurfaces for multifunction and tunable performance at optical frequencies based on glide symmetry.

ABSTRACT: Dielectric metasurfaces have opened promising possibilities to enable a versatile platform in the miniaturization of optical elements at visible and infrared frequencies. Due to high efficiency and compatibility with CMOS fabrication technology, silicon-based metasurfaces have a remarkable potential for a wide variety of optical devices. Adding tunability mechanisms to metasurfaces could be beneficial for their application in areas such as communications, imaging and sensing. In this paper, we propose an all-silicon reconfigurable metasurface based on the concept of glide symmetry. The reconfigurability is achieved by a phase modulation of the transmitted wave activated by a lateral displacement of the layers. The misalignment between the layers creates a new inner periodicity which leads

SUBMITTER: Shanei MM 

PROVIDER: S-EPMC6754409 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature