Active Plasmonics: Controlling Signals in Au/Ga Waveguide using Nanoscale Structural Transformations
Materials Science
2009-11-10 v1 Strongly Correlated Electrons
Abstract
We develop a new concept for active plasmonics exploiting nanoscale structural transformations which is supported by rigorous numerical analysis. We show that surface plasmon-polariton signals in a metal-on-dielectric waveguide containing a gallium section a few microns long can be effectively controlled by switching the structural phase of gallium. The switching may be achieved by either changing the waveguide temperature or by external optical excitation. The signal modulation depth could exceed 80 percent and switching times are expected to be in the picosecond-microsecond time scale.
Cite
@article{arxiv.cond-mat/0310530,
title = {Active Plasmonics: Controlling Signals in Au/Ga Waveguide using Nanoscale Structural Transformations},
author = {A. V. Krasavin and N. I. Zheludev},
journal= {arXiv preprint arXiv:cond-mat/0310530},
year = {2009}
}
Comments
RevTeX 4, 3 pages