CST – Computer Simulation Technology

On Certain Design Criteria for Nanoantennas in the Visible

Title:
On Certain Design Criteria for Nanoantennas in the Visible
Author(s):
Andrea Alù, Nader Engheta
Source:
Journal of Computational and Theoretical Nanoscience
Vol./Issue/Date:
Volume: 6, Issue: 9, September 2009
Year:
2009
Page(s):
2009-2015
Keywords:
Nanoantennas, Plasmonics, Nanocircuits, Nanoparticles
Abstract:
Here, we report our recent results on the modeling and design of optical nanoantennas loaded with optical nanocircuit elements. In particular, we review our recently proposed concepts of optical nanoantenna input impedance, optical radiation resistance, matching and loading using optical lumped nanocircuit elements, specifically as applied to plasmonic nanodipoles, both in transmitting and receiving modes. We analyze in details the radiation properties of this class of optical nanoantennas and we discuss how the concepts of optical nanocircuits may allow tuning and better matching these nanoradiators when fed by optical waveguides
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