Collective modes of self-assembled supercluster metamaterials: towards label-free sensing

Alberto Lauri; Leonora Velleman; Xiaofei Xiao; Emiliano Cortes; Joshua B. Edel; Vincenzo Giannini; Aliaksandra Rakovich; Stefan A. Maier

doi:10.1117/12.2530098

3 October 2019 Collective modes of self-assembled supercluster metamaterials: towards label-free sensing

Alberto Lauri, Leonora Velleman, Xiaofei Xiao, Emiliano Cortes, Joshua B. Edel, Vincenzo Giannini, Aliaksandra Rakovich, Stefan A. Maier

Author Affiliations +

Proceedings Volume 11207, Fourth International Conference on Applications of Optics and Photonics; 1120729 (2019) https://doi.org/10.1117/12.2530098
Event: IV International Conference on Applications of Optics and Photonics (AOP 2019), 2019, Lisbon, Portugal

Abstract

Lithographically-produced plasmonic structures, while offering exceptional control of light through light-matter interactions, have seen limited implementation into sensing technologies. This has been due to several factors, such as large ohmic losses and high cost of fabrication. The use of self-assembled superclusters of chemically-synthesized metallic nanoparticles has been proposed as means of overcoming some of these limitations, by exploiting their collective modes. In this work, the existence of such modes is successfully verified by 3D Raman tomography. Proof-ofprinciple experiments are also conducted to demonstrate the potential of superclusters in sensing schemes.

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Alberto Lauri, Leonora Velleman, Xiaofei Xiao, Emiliano Cortes, Joshua B. Edel, Vincenzo Giannini, Aliaksandra Rakovich, and Stefan A. Maier "Collective modes of self-assembled supercluster metamaterials: towards label-free sensing", Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 1120729 (3 October 2019); https://doi.org/10.1117/12.2530098

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