Coherent control of plasmonic nanoantennas using optical eigenmodes

Sebastian Kosmeier, Anna Chiara De Luca, Svetlana Zolotovskaya, Andrea Di Falco, Kishan Dholakia, Michael Mazilu (Lead / Corresponding author)

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)
    152 Downloads (Pure)

    Abstract

    The last decade has seen subwavelength focusing of the electromagnetic field in the proximity of nanoplasmonic structures with various designs. However, a shared issue is the spatial confinement of the field, which is mostly inflexible and limited to fixed locations determined by the geometry of the nanostructures, which hampers many applications. Here, we coherently address numerically and experimentally single and multiple plasmonic nanostructures chosen from a given array, resorting to the principle of optical eigenmodes. By decomposing the light field into optical eigenmodes, specifically tailored to the nanostructure, we create a subwavelength, selective and dynamic control of the incident light. The coherent control of plasmonic nanoantennas using this approach shows an almost zero crosstalk. This approach is applicable even in the presence of large transmission aberrations, such as present in holographic diffusers and multimode fibres. The method presents a paradigm shift for the addressing of plasmonic nanostructures by light.
    Original languageEnglish
    Article number1808
    Pages (from-to)1-7
    Number of pages7
    JournalScientific Reports
    Volume3
    DOIs
    Publication statusPublished - 9 May 2013

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