Dual Coaxial Longitudinal Polarization Vortex Structures

Zhongsheng Man, Zheng Xi, Xiaocong Yuan, R. E. Burge, and H. Paul Urbach

Phys. Rev. Lett. 124, 103901 – Published 9 March 2020

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.

Received 17 July 2019
Accepted 19 February 2020

DOI:https://doi.org/10.1103/PhysRevLett.124.103901

Physics Subject Headings (PhySH)

Angular momentum of light Light propagation, transmission & absorption Optical vortices Polarization of light Spin-orbit coupling

Atomic, Molecular & Optical

Authors & Affiliations

Zhongsheng Man^1,2,*, Zheng Xi^2,*, Xiaocong Yuan^3,†, R. E. Burge⁴, and H. Paul Urbach^2,‡

¹School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
²Optics Research Group, Department of Imaging Physics, Delft University of Technology, Lorentzweg 1, 2628CJ Delft, The Netherlands
³Nanophotonics Research Center, Shenzhen University, Shenzhen 518060, China
⁴Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom

^*These authors contributed equally to this work.
^†xcyuan@szu.edu.cn
^‡h.p.urbach@tudelft.nl

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Vol. 124, Iss. 10 — 13 March 2020

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