Design of Metamaterial Surfaces with Broad-band Absorbance
Optics
2015-05-30 v1
Abstract
A simple design paradigm for making broad-band ultra-thin plasmonic absorbers is introduced. The absorber's unit cell is composed of sub-units of various sizes, resulting in nearly 100% absorbance at multiple adjacent frequencies and high absorbance over a broad frequency range. A simple theoretical model for designing broad-band absorbers is presented. It uses a single-resonance model to describe the optical response of each sub-unit and employs the series circuit model to predict the overall response. Validity of the circuit model relies on short propagation lengths of the surface plasmons.
Keywords
Cite
@article{arxiv.1109.5710,
title = {Design of Metamaterial Surfaces with Broad-band Absorbance},
author = {Chihhui Wu and Gennady Shvets},
journal= {arXiv preprint arXiv:1109.5710},
year = {2015}
}