Simultaneous control of three degrees of freedom in perfect vector vortex beams based on metasurfaces.

ABSTRACT: The perfect vector vortex beams (PVVBs) have played an important role in various fields due to their advantages of unique vortex features, flexible polarization distribution and multiple degrees of freedom (DoFs). The simultaneous and precise control over multiple DoFs, such as the polarization distribution, beam shape and position which greatly influence various characteristics of PVVBs, holds paramount importance. However, it is still difficult to manipulate various DoFs in a multiplexing way and the control precision of polarization distribution only reaches the half-integer level, notably hindering the further application and development of PVVBs. Here, an approach that integrates holographic technique with geometric phase metasurfaces, experimentally demonstrates the multiplexing cont

SUBMITTER: Li S 

PROVIDER: S-EPMC11831394 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature