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Polarization Singularities in the Metal-Insulator-Metal Surface Plasmon Polariton Waveguide

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3 Author(s)
Junghyun Park ; Nat. Creative Res. Center for Active Plasmonics Applic. Syst., Seoul Nat. Univ., Seoul, South Korea ; Seung-Yeol Lee ; Byoungho Lee

We investigate the polarization singularities in the metal-insulator-metal (MIM) plasmonic waveguide structure. It turns out that there exist L-line and C-point polarization singularities for the antisymmetric plasmonic mode in the MIM plasmonic waveguide. These polarization singularities have unique properties because they exist on a subwavelength plane parallel to the direction of propagation of light along the core. We believe that our findings can expand the understanding of polarization distributions in nanoscale plasmonic structures.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:46 ,  Issue: 11 )