T. Feichtner, O. Selig, M. Kiunke, and B. Hecht. Phys. Rev. Lett., 109 (12):
127701(Sep 12, 2012)<a href="http://arxiv.org/abs/1204.5422"style="font-style: normal;">» arXiv:1204.5422</a>, <a href="http://journals.aps.org/prl/covers/109/12"style="font-style: normal;">» cover image</a>.
DOI: 10.1103/PhysRevLett.109.127701
Abstract
The design of nanoantennas has so far been mainly inspired by radio-frequency technology. However, the material properties and experimental settings need to be reconsidered at optical frequencies, which would entail the need for alternative optimal antenna designs. Here we subject a checkerboard-type, initially random array of gold cubes to evolutionary optimization. To illustrate the power of the approach, we demonstrate that by optimizing the near-field intensity enhancement, the evolutionary algorithm finds a new antenna geometry, essentially a split-ring–two-wire antenna hybrid that surpasses by far the performance of a conventional gap antenna by shifting the n=1 split-ring resonance into the optical regime.
%0 Journal Article
%1 feichtner2012evolutionary
%A Feichtner, Thorsten
%A Selig, Oleg
%A Kiunke, Markus
%A Hecht, Bert
%D 2012
%J Phys. Rev. Lett.
%K antenna experiment field-enhancement gold nano-optics near-field
%N 12
%P 127701
%R 10.1103/PhysRevLett.109.127701
%T Evolutionary Optimization of Optical Antennas
%V 109
%X The design of nanoantennas has so far been mainly inspired by radio-frequency technology. However, the material properties and experimental settings need to be reconsidered at optical frequencies, which would entail the need for alternative optimal antenna designs. Here we subject a checkerboard-type, initially random array of gold cubes to evolutionary optimization. To illustrate the power of the approach, we demonstrate that by optimizing the near-field intensity enhancement, the evolutionary algorithm finds a new antenna geometry, essentially a split-ring–two-wire antenna hybrid that surpasses by far the performance of a conventional gap antenna by shifting the n=1 split-ring resonance into the optical regime.
@article{feichtner2012evolutionary,
abstract = {The design of nanoantennas has so far been mainly inspired by radio-frequency technology. However, the material properties and experimental settings need to be reconsidered at optical frequencies, which would entail the need for alternative optimal antenna designs. Here we subject a checkerboard-type, initially random array of gold cubes to evolutionary optimization. To illustrate the power of the approach, we demonstrate that by optimizing the near-field intensity enhancement, the evolutionary algorithm finds a new antenna geometry, essentially a split-ring–two-wire antenna hybrid that surpasses by far the performance of a conventional gap antenna by shifting the n=1 split-ring resonance into the optical regime.},
added-at = {2020-02-24T09:21:43.000+0100},
author = {Feichtner, Thorsten and Selig, Oleg and Kiunke, Markus and Hecht, Bert},
biburl = {https://www.bibsonomy.org/bibtex/2640a24114d15988e5b4684b522e5c60f/ep5optics},
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doi = {10.1103/PhysRevLett.109.127701},
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journal = {Phys. Rev. Lett.},
keywords = {antenna experiment field-enhancement gold nano-optics near-field},
month = {09},
note = {<a href="http://arxiv.org/abs/1204.5422"style="font-style: normal;">» arXiv:1204.5422</a>, <a href="http://journals.aps.org/prl/covers/109/12"style="font-style: normal;">» cover image</a>},
number = 12,
pages = 127701,
timestamp = {2020-03-10T13:00:12.000+0100},
title = {Evolutionary Optimization of Optical Antennas},
urldate = {2020-02-24},
volume = 109,
year = 2012
}