Document Type

Article

Publication Date

9-2015

Publication Source

Scientific Reports

Abstract

Optical complex fields have attracted increasing interests because of the novel effects and phenomena arising from the spatially inhomogeneous state of polarizations and optical singularities of the light beam. In this work, we propose a spiral blade plasmonic vortex lens (SBPVL) that offers unique opportunities to manipulate these novel fields. The strong interaction between the SBPVL and the optical complex fields enable the synthesis of highly tunable plasmonic vortex. Through theoretical derivations and numerical simulations we demonstrated that the characteristics of the plasmonic vortex are determined by the angular momentum (AM) of the light, and the geometrical topological charge of the SBPVL, which is govern by the nonlinear superposition of the pitch and the number of blade element. In addition, it is also shown that by adjusting the geometric parameters, SBPVL can be utilized to focus and manipulate optical complex field with fractional AM. This miniature plasmonic device may find potential applications in optical trapping, optical data storage and many other related fields.

Inclusive pages

1-9

ISBN/ISSN

2045-2322

Document Version

Published Version

Comments

This document is provided for download in compliance with the publisher's policy on self-archiving.

DOI: http://dx.doi.org/10.1038/srep13732

This work is supported by the National Key Basic Research Program of China (Grant No. 2015CB352002) and the Fundamental Research Funds for the Central Universities (Grant No. 2242015KD001).

Permission documentation is on file.

Publisher

Macmillan Publishers

Volume

5

Peer Reviewed

yes


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