Dual Coaxial Longitudinal Polarization Vortex Structures
Zhongsheng Man, Zheng Xi, Xiaocong Yuan, R. E. Burge, H. P. Urbach
Abstract
Carrying orbital angular momentum per photon, the optical vortex has elicited widespread interest. Here, we demonstrate that dual coaxial longitudinal polarization vortices can appear upon a nonparaxial propagation of a tightly focused Pancharatnam-Berry tailored Laguerre-Gaussian beam. Most importantly, it is capable of accessing arbitrary independent topological charges for both vortices, as well as predesigned tunable spacing distances between them.
Topics & Concepts
Optical vortexPhysicsVortexCoaxialPolarization (electrochemistry)Angular momentumTopological quantum numberGaussian beamPhotonOpticsCircular polarizationLight beamClassical mechanicsQuantum mechanicsBeam (structure)MechanicsEngineeringMicrostripElectrical engineeringChemistryPhysical chemistryOrbital Angular Momentum in OpticsMetamaterials and Metasurfaces ApplicationsMicrofluidic and Bio-sensing Technologies