%0 Journal Article %1 grimm2020driving %A Grimm, Philipp %A Razinskas, Gary %A Huang, Jer-Shing %A Hecht, Bert %D 2021 %J nanoph-2021-0048 %K experiment nano-optics plasmon resonance %R 10.1515/nanoph-2021-0048 %T Driving plasmonic nanoantennas at perfect impedance matching using generalized coherent perfect absorption %U https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0048/html %X Coherent perfect absorption (CPA) describes the absence of all outgoing modes from a lossy resonator, driven by lossless incoming modes. Here, we show that for nanoresonators that also exhibit radiative losses, e.g., plasmonic nanoantennas, a generalized version of CPA (gCPA) can be applied. In gCPA outgoing modes are suppressed only for a subset of (guided plasmonic) modes while other (radiative) modes are treated as additional loss channels - a situation typically referred to as perfect impedance matching. Here we make use of gCPA to show how to achieve perfect impedance matching between a single nanowire plasmonic waveguide and a plasmonic nanoantenna. Antennas with both radiant and subradiant characteristics are considered. We further demonstrate potential applications in background-free sensing.

@article{grimm2020driving, abstract = {Coherent perfect absorption (CPA) describes the absence of all outgoing modes from a lossy resonator, driven by lossless incoming modes. Here, we show that for nanoresonators that also exhibit radiative losses, e.g., plasmonic nanoantennas, a generalized version of CPA (gCPA) can be applied. In gCPA outgoing modes are suppressed only for a subset of (guided plasmonic) modes while other (radiative) modes are treated as additional loss channels - a situation typically referred to as perfect impedance matching. Here we make use of gCPA to show how to achieve perfect impedance matching between a single nanowire plasmonic waveguide and a plasmonic nanoantenna. Antennas with both radiant and subradiant characteristics are considered. We further demonstrate potential applications in background-free sensing.}, added-at = {2020-02-24T12:55:00.000+0100}, author = {Grimm, Philipp and Razinskas, Gary and Huang, Jer-Shing and Hecht, Bert}, biburl = {https://www.bibsonomy.org/bibtex/2c91ce48162c230a2df60f6f8a00ef5c4/ep5optics}, day = 26, doi = {10.1515/nanoph-2021-0048}, file = {arXiv.org Snapshot:C\:\\Users\\scherzad\\Zotero\\storage\\43EGM2EG\\1907.html:text/html;Huang et al. - 2019 - Nanoscale ultrasensing using a nonbonding plasmon .pdf:C\:\\Users\\scherzad\\Zotero\\storage\\G8FSQZ6M\\Huang et al. - 2019 - Nanoscale ultrasensing using a nonbonding plasmon .pdf:application/pdf}, interhash = {8bb8611eec965d77ec42c460ce89536d}, intrahash = {c91ce48162c230a2df60f6f8a00ef5c4}, journal = {nanoph-2021-0048}, keywords = {experiment nano-optics plasmon resonance}, month = {04}, note = {<a href="https://arxiv.org/abs/1907.08174" style="font-style: normal;">&raquo; arXiv: 1907.08174 (2020)</a>}, timestamp = {2021-08-02T13:13:17.000+0200}, title = {Driving plasmonic nanoantennas at perfect impedance matching using generalized coherent perfect absorption}, url = {https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0048/html}, urldate = {2020-02-24}, year = 2021 }