Input Impedance, Nanocircuit Loading, and Radiation Tuning of Optical Nanoantennas
Materials Science
2009-11-13 v1
Abstract
Here we explore the radiation features of optical nanoantennas, analyzing the concepts of input impedance, optical radiation resistance, impedance matching and loading of plasmonic nanodipoles. We discuss how the concept of antenna impedance may be applied to optical frequencies, and how its quantity may be properly defined and evaluated. We exploit these concepts in optimization of nanoantenna loading by optical nanocircuit elements, extending classic concepts of radio-frequency antenna theory to the visible regime for the proper design and matching of plasmonic nanoantennas.
Keywords
Cite
@article{arxiv.0710.3411,
title = {Input Impedance, Nanocircuit Loading, and Radiation Tuning of Optical Nanoantennas},
author = {Andrea Alu and Nader Engheta},
journal= {arXiv preprint arXiv:0710.3411},
year = {2009}
}
Comments
16 pages, 4 figures