%0 Journal Article %1 feichtner2017plasmonic %A Feichtner, Thorsten %A Selig, Oleg %A Hecht, Bert %D 2017 %J Opt. Express %K FIB TPPL antenna experiment nano-optics plasmon %N 10 %P 10828-10842 %R 10.1364/OE.25.010828 %T Plasmonic nanoantenna design and fabrication based on evolutionary optimization %V 25 %X Nanoantennas can tailor light-matter interaction for optical communication, sensing, and spectroscopy. Their design is inspired by radio-frequency rules which partly break down at optical frequencies. Here we find unexpected nanoantenna designs exhibiting strong light localization and enhancement by using a general and scalable evolutionary algorithm based on FDTD simulations that also accounts for geometrical fabrication constraints. The resulting nanoantennas are "printed" directly by focused-ion beam milling and their fitness ranking is validated experimentally by two-photon photoluminescence. We find the best antennas' operation principle deviating from that of classical radio wave-inspired designs. Our work sets the stage for a widespread application of evolutionary optimization in nano photonics.

@article{feichtner2017plasmonic, abstract = {Nanoantennas can tailor light-matter interaction for optical communication, sensing, and spectroscopy. Their design is inspired by radio-frequency rules which partly break down at optical frequencies. Here we find unexpected nanoantenna designs exhibiting strong light localization and enhancement by using a general and scalable evolutionary algorithm based on FDTD simulations that also accounts for geometrical fabrication constraints. The resulting nanoantennas are "printed" directly by focused-ion beam milling and their fitness ranking is validated experimentally by two-photon photoluminescence. We find the best antennas' operation principle deviating from that of classical radio wave-inspired designs. Our work sets the stage for a widespread application of evolutionary optimization in nano photonics.}, added-at = {2020-02-24T11:07:37.000+0100}, author = {Feichtner, Thorsten and Selig, Oleg and Hecht, Bert}, biburl = {https://www.bibsonomy.org/bibtex/2f2f90412667985e0e407153d44112115/ep5optics}, copyright = {\&\#169; 2017 Optical Society of America}, day = 15, doi = {10.1364/OE.25.010828}, file = {Feichtner et al. - 2017 - Plasmonic nanoantenna design and fabrication based.pdf:C\:\\Users\\scherzad\\Zotero\\storage\\39AT2FMS\\Feichtner et al. - 2017 - Plasmonic nanoantenna design and fabrication based.pdf:application/pdf;Snapshot:C\:\\Users\\scherzad\\Zotero\\storage\\VJYAZYD8\\abstract.html:text/html}, interhash = {acee9bfd86971479a4dc721f4ab12042}, intrahash = {f2f90412667985e0e407153d44112115}, issn = {1094-4087}, journal = {Opt. Express}, keywords = {FIB TPPL antenna experiment nano-optics plasmon}, language = {EN}, month = {05}, note = {<a href="https://arxiv.org/abs/1511.05438" style="font-style: normal;">&raquo; arXiv: 1511.05438 (2016)</a>}, number = 10, pages = {10828-10842}, timestamp = {2020-03-10T12:52:15.000+0100}, title = {Plasmonic nanoantenna design and fabrication based on evolutionary optimization}, urldate = {2020-02-24}, volume = 25, year = 2017 }