Journal
NANO LETTERS
Volume 10, Issue 2, Pages 529-536Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl903380j
Keywords
Surface plasmon; surface plasmon vortex; plasmonic vortex lens; circular polarization
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Funding
- National Research Foundation
- Ministry of Education, Science and Technology of Korea through the Creative Research Initiative Program
- National Research Foundation of Korea [2007-0054847] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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.
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