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Near-field properties of plasmonic nanostructures with high aspect ratio
Y. Ould Agha, O. Demichel, C. Girard +2
Using the Green's dyad technique based on cuboidal meshing, we compute the electromagnetic field scattered by metal nanorods with high aspect ratio. We investigate the effect of th…
Selective excitation of bright and dark plasmonic resonances of single gold nanorods
O. Demichel, M. Petit, G. Colas des Francs +5
Plasmonic dark modes are pure near-field resonances since their dipole moments are vanishing in far field. These modes are particularly interesting to enhance nonlinear light-matte…
Delocalization of nonlinear optical responses in plasmonic nanoantennas
Sviatlana Viarbitskaya, Olivier Demichel, Benoit Cluzel +2
Remote excitation and emission of two-photon luminescence and second-harmonic generation are observed in micrometer long gold rod optical antennas upon local illumination with a ti…