Synthesis and dynamic switching of surface plasmon vortices with plasmonic vortex lens

Hwi Kim, Junghyun Park, Seong Woo Cho, Seung Yeol Lee, Minsu Kang, Byoungho Lee

Research output: Contribution to journalArticlepeer-review

316 Scopus citations

Abstract

The generation of surface plasmon vortices with arbitrary higher order vortex topological charges with novel plasmonic vortex lens is experimentally demonstrated. It is shown that the polarization sensitivity of the plasmonic vortex lens can be utilized for the dynamic switching of the surface plasmon vortices with different topological charges. A simple algebraic rule related to the vortex topological charge change in the dynamic switching is formulated, and its proof is provided with theory and experiment. The synthesis and dynamic switching of higher order surface plasmon vortices have profound potential in optical trapping, optical data storage, and other related fields.

Original languageEnglish
Pages (from-to)529-536
Number of pages8
JournalNano Letters
Volume10
Issue number2
DOIs
StatePublished - 10 Feb 2010

Keywords

  • Circular polarization
  • Plasmonic vortex lens
  • Surface plasmon
  • Surface plasmon vortex

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