%0 Journal Article %1 razinskas2016normalincidence %A Razinskas, Gary %A Kilbane, Deirdre %A Melchior, Pascal %A Geisler, Peter %A Krauss, Enno %A Mathias, Stefan %A Hecht, Bert %A Aeschlimann, Martin %D 2016 %J Nano Lett. %K TPPL experiment nano-optics plasmon %N 11 %P 6832-6837 %R 10.1021/acs.nanolett.6b02569 %T Normal-Incidence PEEM Imaging of Propagating Modes in a Plasmonic Nanocircuit %V 16 %X The design of noble-metal plasmonic devices and nanocircuitry requires a fundamental understanding and control of the interference of plasmonic modes. Here we report the first visualization of the propagation and interference of guided modes in a showcase plasmonic nanocircuit using normal-incidence nonlinear two-photon photoemission electron microscopy (PEEM). We demonstrate that in contrast to the commonly used grazing-incidence illumination scheme, normal-incidence PEEM provides a direct image of the structure’s near-field intensity distribution due to the absence of beating patterns and despite the transverse character of the plasmonic modes. Based on a simple heuristic numerical model for the photoemission yield, we are able to model all experimental findings if global plane wave illumination and coupling to multiple input/output ports, and the resulting interference effects are accounted for.

@article{razinskas2016normalincidence, abstract = {The design of noble-metal plasmonic devices and nanocircuitry requires a fundamental understanding and control of the interference of plasmonic modes. Here we report the first visualization of the propagation and interference of guided modes in a showcase plasmonic nanocircuit using normal-incidence nonlinear two-photon photoemission electron microscopy (PEEM). We demonstrate that in contrast to the commonly used grazing-incidence illumination scheme, normal-incidence PEEM provides a direct image of the structure’s near-field intensity distribution due to the absence of beating patterns and despite the transverse character of the plasmonic modes. Based on a simple heuristic numerical model for the photoemission yield, we are able to model all experimental findings if global plane wave illumination and coupling to multiple input/output ports, and the resulting interference effects are accounted for.}, added-at = {2020-02-24T11:00:12.000+0100}, author = {Razinskas, Gary and Kilbane, Deirdre and Melchior, Pascal and Geisler, Peter and Krauss, Enno and Mathias, Stefan and Hecht, Bert and Aeschlimann, Martin}, biburl = {https://www.bibsonomy.org/bibtex/2101c45b5e217f84d1f3ee8f17ff583d6/ep5optics}, day = 09, doi = {10.1021/acs.nanolett.6b02569}, file = {ACS Full Text Snapshot:C\:\\Users\\scherzad\\Zotero\\storage\\FANI3BNN\\acs.nanolett.html:text/html;Razinskas et al. - 2016 - Normal-Incidence PEEM Imaging of Propagating Modes.pdf:C\:\\Users\\scherzad\\Zotero\\storage\\FJ6NHUC4\\Razinskas et al. - 2016 - Normal-Incidence PEEM Imaging of Propagating Modes.pdf:application/pdf}, interhash = {f914b10cccf2ae8fa1796cb112dfffc0}, intrahash = {101c45b5e217f84d1f3ee8f17ff583d6}, issn = {1530-6984}, journal = {Nano Lett.}, keywords = {TPPL experiment nano-optics plasmon}, month = {11}, number = 11, pages = {6832-6837}, timestamp = {2020-02-24T11:00:12.000+0100}, title = {Normal-Incidence PEEM Imaging of Propagating Modes in a Plasmonic Nanocircuit}, urldate = {2020-02-24}, volume = 16, year = 2016 }