Polarized evanescent waves reveal trochoidal dichroism

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dc.citation.firstpage16143
dc.citation.issueNumber28
dc.citation.journalTitleProceedings of the National Academy of Sciences
dc.citation.lastpage16148
dc.citation.volumeNumber117
dc.contributor.authorMcCarthy, Lauren A.
dc.contributor.authorSmith, Kyle W.
dc.contributor.authorLan, Xiang
dc.contributor.authorJebeli, Seyyed Ali Hosseini
dc.contributor.authorBursi, Luca
dc.contributor.authorAlabastri, Alessandro
dc.contributor.authorChang, Wei-Shun
dc.contributor.authorNordlander, Peter
dc.contributor.authorLink, Stephan
dc.contributor.orgLaboratory for Nanoscale Spectroscopic Imaging at Rice
dc.contributor.orgLaboratory for Nanophotonics
dc.date.accessioned2020-08-12T19:06:09Z
dc.date.available2020-08-12T19:06:09Z
dc.date.issued2020
dc.description.abstractMatter’s sensitivity to light polarization is characterized by linear and circular polarization effects, corresponding to the system’s anisotropy and handedness, respectively. Recent investigations into the near-field properties of evanescent waves have revealed polarization states with out-of-phase transverse and longitudinal oscillations, resulting in trochoidal, or cartwheeling, field motion. Here, we demonstrate matter’s inherent sensitivity to the direction of the trochoidal field and name this property trochoidal dichroism. We observe trochoidal dichroism in the differential excitation of bonding and antibonding plasmon modes for a system composed of two coupled dipole scatterers. Trochoidal dichroism constitutes the observation of a geometric basis for polarization sensitivity that fundamentally differs from linear and circular dichroism. It could also be used to characterize molecular systems, such as certain light-harvesting antennas, with cartwheeling charge motion upon excitation.
dc.identifier.citationMcCarthy, Lauren A., Smith, Kyle W., Lan, Xiang, et al.. "Polarized evanescent waves reveal trochoidal dichroism." <i>Proceedings of the National Academy of Sciences,</i> 117, no. 28 (2020) National Academy of Sciences: 16143-16148. https://doi.org/10.1073/pnas.2004169117.
dc.identifier.doihttps://doi.org/10.1073/pnas.2004169117
dc.identifier.urihttps://hdl.handle.net/1911/109192
dc.language.isoeng
dc.publisherNational Academy of Sciences
dc.rightsThis open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND).
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titlePolarized evanescent waves reveal trochoidal dichroism
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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