@article{10902/31453,
year = {2012},
url = {https://hdl.handle.net/10902/31453},
abstract = {We investigate theoretically and experimentally the structure of plasmonic modes in individual asymmetric dimer antennas. Plasmonic near-field coupling of high-order modes results in hybridization of bright and dark modes of the individual nanorods, leading to an anticrossing of the coupled resonances. For two bright modes, hybridization results in a capacitive red shift and super-radiant broadening. We show that the properties of asymmetric dimers can be used for nonlinear control of spectral modes and demonstrate such a nonlinear effect by measuring the modulation of a hybrid asymmetric dimer—ITO antenna. With use of full electrodynamical calculations, we find that the properties of the near-field nonlinear responses are distinctly different from the far-field, which opens up new routes for nonlinear control of plasmonic nanosystems.},
organization = {P.A. acknowledges the support received from the European Science Foundation for the activity entitled "New approaches to Biochemical sensing with Plasmonic Nanobiophotonics" (PLASMON-BIONANOSENSE). J.A. acknowledges funding from the ETORTEK project inanoGUNE from the Basque Government and Project FIS2007-66711-C01-01 of the Spanish Ministry of Innovation and Science. O.L.M. acknowledges support from EPSRC through Grant EP/J010758/1.},
publisher = {American Chemical Society},
publisher = {ACS Nano, 2012, 6(7), 6462-6470},
title = {Interference, coupling, and nonlinear control of high-order modes in single asymmetric nanoantennas},
author = {Abb, Martina and Wang, Yudong and Albella Echave, Pablo and Groot, C. H. de and Aizpurua, Javier and Muskens, Otto L.},
}