%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}, day = 12, doi = {10.1103/PhysRevLett.109.127701}, file = {APS Snapshot:C\:\\Users\\scherzad\\Zotero\\storage\\CZSNHKKT\\PhysRevLett.109.html:text/html;Feichtner et al. - 2012 - Evolutionary Optimization of Optical Antennas.pdf:C\:\\Users\\scherzad\\Zotero\\storage\\QT52SHM3\\Feichtner et al. - 2012 - Evolutionary Optimization of Optical Antennas.pdf:application/pdf}, interhash = {edc5beb6e623a2476292f52889263e9b}, intrahash = {640a24114d15988e5b4684b522e5c60f}, 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;">&raquo; arXiv:1204.5422</a>, <a href="http://journals.aps.org/prl/covers/109/12"style="font-style: normal;">&raquo; 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 }