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dc.contributor.authorMcCarthy, Lauren A.
Smith, Kyle W.
Lan, Xiang
Jebeli, Seyyed Ali Hosseini
Bursi, Luca
Alabastri, Alessandro
Chang, Wei-Shun
Nordlander, Peter
Link, Stephan
dc.date.accessioned 2020-08-12T19:06:09Z
dc.date.available 2020-08-12T19:06:09Z
dc.date.issued 2020
dc.identifier.citation McCarthy, Lauren A., Smith, Kyle W., Lan, Xiang, et al.. "Polarized evanescent waves reveal trochoidal dichroism." Proceedings of the National Academy of Sciences, 117, no. 28 (2020) National Academy of Sciences: 16143-16148. https://doi.org/10.1073/pnas.2004169117.
dc.identifier.urihttps://hdl.handle.net/1911/109192
dc.description.abstract Matter’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.language.iso eng
dc.publisher National Academy of Sciences
dc.rights This 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.title Polarized evanescent waves reveal trochoidal dichroism
dc.type Journal article
dc.citation.journalTitle Proceedings of the National Academy of Sciences
dc.contributor.org Laboratory for Nanoscale Spectroscopic Imaging at Rice
dc.contributor.org Laboratory for Nanophotonics
dc.citation.volumeNumber 117
dc.citation.issueNumber 28
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1073/pnas.2004169117
dc.type.publication publisher version
dc.citation.firstpage 16143
dc.citation.lastpage 16148


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