All-dielectric metaoptics for the compact generation of double-ring perfect vector beams

All-dielectric metaoptics for the compact generation of double-ring perfect vector beams

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Perfect vortices, whose ring profile is independent of the topological charge, play a key role in telecommunications and particle micro-manipulation.In this work, we report the compact generation of a new kind of double-ring perfect vortices, called Utensil Jar double-ring perfect vector beams, by exploiting dual-functional silicon metaoptics.In particular, we develop and test a new paradigm to generate those beams with the possibility of selecting different topological charges between the two rings.The generated beams are characterized through a filtering method, proving that the two rings have a vectorial nature with the same magnitude ALIVE ADULT GUMMY CHERRY ORANGE and either the same or different topological charges.

Their unique properties suggest promising applications for optical tweezing and manipulation of low refractive-index particles, trapping of cold atoms, and high-capacity communications.