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dc.contributor.authorYang, Jinghuanen_US
dc.contributor.authorSun, Quanen_US
dc.contributor.authorYu, Hanen_US
dc.contributor.authorUeno, Koseien_US
dc.contributor.authorMisawa, Hiroakien_US
dc.contributor.authorGong, Qihuangen_US
dc.date.accessioned2018-08-21T05:54:20Z-
dc.date.available2018-08-21T05:54:20Z-
dc.date.issued2017-06-01en_US
dc.identifier.issn2327-9125en_US
dc.identifier.urihttp://dx.doi.org/10.1364/PRJ.5.000187en_US
dc.identifier.urihttp://hdl.handle.net/11536/145813-
dc.description.abstractWe investigate the superposition properties of the dipole and quadrupole plasmon modes in the near field both experimentally, by using photoemission electron microscopy (PEEM), and theoretically. In particular, the asymmetric near-field distributions on gold (Au) nanodisks and nanoblocks under oblique incidence with different polarizations are investigated in detail. The results of PEEM measurements show that the evolutions of the asymmetric near-field distributions are different between the excitation with s-polarized and p-polarized light. The experimental results can be reproduced very well by numerical simulations and interpreted as the superposition of the dipole and quadrupole modes with the help of analytic calculations. Moreover, we hypothesize that the electrons collected by PEEM are mainly from the plasmonic hot spots located at the plane in the interface between the Au particles and the substrate in the PEEM experiments. (C) 2017 Chinese Laser Pressen_US
dc.language.isoen_USen_US
dc.titleSpatial evolution of the near-field distribution on planar gold nanoparticles with the excitation wavelength across dipole and quadrupole modesen_US
dc.typeArticleen_US
dc.identifier.doi10.1364/PRJ.5.000187en_US
dc.identifier.journalPHOTONICS RESEARCHen_US
dc.citation.volume5en_US
dc.citation.spage187en_US
dc.citation.epage193en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000405990300008en_US
Appears in Collections:Articles