Figure (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure

Caption

a, Schematic of a spin-decoupled metasurface that merges the geometric phase and dynamic phase for simultaneous SAM and OAM sorting via PMTs. Vortex beams with different spins are transformed into focusing patterns on two separated halves of the screen on a transverse focal plane with topological charge-dependent azimuthal rotations. b, SAM and OAM sorting at a wavelength of 532 nm. Measured and simulated focusing patterns for different SAMs and OAMs with the topological charge changing from -4 to 5. c, Cylindrical vortex vector beam sorting at a wavelength of 532 nm. Measured focusing patterns for different phase singularities changing from 0 to 5 and polarization singularity m = 1.

Credit

by Yinghui Guo, Shicong Zhang, Mingbo Pu, Qiong He, Jinjin Jin, Mingfeng Xu, Yaxin Zhang, Ping Gao, Xiangang Luo

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.