Synthesis and dynamic switching of surface plasmon vortices with plasmonic vortex lens.
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.
Kim
Hwi
H
National Creative Research Center for Active Plasmonics Application Systems, Inter-University Semiconductor Research Center and School of Electrical Engineering, Seoul National University, Gwanak-Gu Gwanakro 599, Seoul 151-744, Korea.
Park
Junghyun
J
Cho
Seong-Woo
SW
Lee
Seung-Yeol
SY
Kang
Minsu
M
Lee
Byoungho
B
D000465:Algorithms; D004867:Equipment Design; D007909:Lenses; D008855:Microscopy, Electron, Scanning / Q000379:methods; D015233:Models, Statistical; D049329:Nanostructures; D036103:Nanotechnology / Q000379:methods*; D055095:Optics and Photonics; D020349:Surface Plasmon Resonance / Q000295:instrumentation*