Hybrid plasmonic lattices with tunable magneto-optical activity

Mikko Kataja, Sara Pourjamal, Nicolò Maccaferri, Paolo Vavassori, Tommi K. Hakala, Mikko J. Huttunen, Päivi Törmä, Sebastiaan Van Dijken

Research output: Contribution to journalArticleScientificpeer-review

27 Citations (Scopus)
171 Downloads (Pure)

Abstract

We report on the optical and magneto-optical response of hybrid plasmonic lattices that consist of pure nickel and gold nanoparticles in a checkerboard arrangement. Diffractive far-field coupling between the individual emitters of the lattices results in the excitation of two orthogonal surface lattice resonance modes. Local analyses of the radiation fields indicate that both the nickel and gold nanoparticles contribute to these collective resonances and, thereby, to the magneto-optical activity of the hybrid arrays. The strong effect of noble metal nanoparticles on the magneto-optical response of hybrid lattices opens up new avenues for the realization of sensitive and tunable magneto-plasmonic nanostructures.

Original languageEnglish
Pages (from-to)3652-3662
Number of pages11
JournalOptics Express
Volume24
Issue number4
DOIs
Publication statusPublished - 22 Feb 2016
MoE publication typeA1 Journal article-refereed

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