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Updated: Jul 11, 2026

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
Published on: December 11, 2013
Evanescent tunneling of an effective surface plasmon excited by convection electrons
Young-Min Shin1, Jin-Kyu So, Kyu-Ha Jang
1Department of Physics and Astronomy, Seoul National University, Seoul, Korea.
Abstract:
We introduce the subwavelength transmission of an effective surface plasmon beyond the light zone via the proximity interaction of convection electrons with a metal grating. A comparative analysis of dielectric homogenization and a finite-difference-time-domain simulation shows that out-of-phase-like modes (pi modes) have strong transmission below the cutoff frequency relying on the parametric condition of structural dimension and electronic energy. The synchronous spatial field and charge distribution of the pi mode system confirms the evanescent tunneling effect of the electron-coupled plasmons.
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