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Proceedings Paper

Controlling the state of surface plasmon vortex by changing the topological charge and polarization state
Author(s): Seung-Yeol Lee; Junghyun Park; Hwi Kim; Seong-Woo Cho; Byoungho Lee
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Paper Abstract

The local excitation of the surface plasmon vortex and hot spot via the plasmonic vortex lens is both theoretically studied and experimentally demonstrated. The phase delay of the excited surface plasmon is caused by the three parameters, which are the geometrical topological charge of the plasmonic vortex lens, the polarization state of the incident beam, and the angular momentum state of the incident beam. These parameters eventually decide the total topological charge of the surface plasmon vortex generated at the center of the plasmonic lens structure. From these results, we finally provide the simple relation between these parameters and the state of the surface plasmon vortex generated by plasmonic lens.ïýïý

Paper Details

Date Published: 10 September 2010
PDF: 8 pages
Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 77573G (10 September 2010); doi: 10.1117/12.861168
Show Author Affiliations
Seung-Yeol Lee, Seoul National Univ. (Korea, Republic of)
Junghyun Park, Seoul National Univ. (Korea, Republic of)
Hwi Kim, Korea Univ. (Korea, Republic of)
Seong-Woo Cho, Seoul National Univ. (Korea, Republic of)
Byoungho Lee, Seoul National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7757:
Plasmonics: Metallic Nanostructures and Their Optical Properties VIII
Mark I. Stockman, Editor(s)

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