Highly Confined Hybrid Spoof Surface Plasmons in Ultra-thin Metal/Dielectric Heterostructures
Optics
2012-04-16 v1 Mesoscale and Nanoscale Physics
Materials Science
Other Condensed Matter
Abstract
Highly confined "spoof" surface plasmon-like (SSP) modes are theoretically predicted to exist in a perforated metal film coated with a thin dielectric layer. Strong modes confinement results from the additional waveguiding by the layer. Spectral characteristics, field distribution, and lifetime of these SSPs are tunable by the holes' size and shape. SSPs exist both above and below the light line, offering two classes of applications: "perfect" far-field absorption and to efficient emission into guided modes. It is experimentally shown that these plasmon-like modes can turn thin, weakly-absorbing semiconductor films into perfect absorbers.
Keywords
Cite
@article{arxiv.1008.4809,
title = {Highly Confined Hybrid Spoof Surface Plasmons in Ultra-thin Metal/Dielectric Heterostructures},
author = {S. Hossein Mousavi and Alexander B. Khanikaev and Burton Neuner and Yoav Avitzour and Dmitriy Korobkin and Gabriel Ferro and Gennady Shvets},
journal= {arXiv preprint arXiv:1008.4809},
year = {2012}
}
Comments
5 pages; 5 figures