Tunable Light Field Modulations with Chip- and Fiber-Compatible Monolithic Dielectric Metasurfaces.

ABSTRACT: Metasurfaces with a high engineering degree of freedom are promising building blocks for applications in metalenses, beam deflectors, metaholograms, sensing, and many others. Though the fundamental and technological challenges, proposing tunable metasurfaces is still possible. Previous efforts in this field are mainly taken on designing sophisticated structures with active materials introduced. Here, we present a generic kind of monolithic dielectric metasurfaces for tunable light field modulations. Changes in the period number and surrounding refractive index enable discrete and continuous modulations of spatial light fields, respectively. We exemplify this concept in monolithic Lithium Niobate metasurfaces for tunable metalenses and beam deflectors. The utilization of monolithic dielectr

SUBMITTER: Du B 

PROVIDER: S-EPMC9823379 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature