2026-04-17T01:27:29Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/987822025-12-05T14:47:35Zcom_2072_1057col_2072_478821col_2072_478917

00925njm 22002777a 4500 dc Sancho i Parramon, Jordi author Bosch i Puig, Salvador author 2016-05-24T07:38:44Z 2016-05-24T07:38:44Z 2012-09-01 2016-05-18T14:19:53Z Control of the polarization distribution of light allows tailoring the electromagnetic response of plasmonic particles. By rigorously extending the generalized multiparticle Mie theory, we show that focused cylindrical vector beams (CVB) can be used to efficiently excite dark plasmon modes in nanoparticle clusters. In addition to the small radiative damping and large field enhancement associated to dark modes, excitation with CVB can give place to unusual phenomenology like the formation of electromagnetic cold spots and the generation of Fano resonances in highly symmetric clusters. Overall, the results show the potential of CVB to tailor the plasmonic response of nanoparticle clusters in a unique way. Nanopartícules Ressonància de plasmons superficials Polarització (Llum) Nanoparticles Surface plasmon resonance Polarization (Light) Dark modes and Fano resonances in plasmonic clusters excited by cylindrical vector beams