Probing plasmonic hot spots on single gold nanowires using combined near-field techniques

Patrick Hsia; Ludovic Douillard; Fabrice Charra; Sylvie Marguet; Sergei Kostcheev; Renaud J. B. Bachelot; Céline Fiorini-Debuisschert

doi:10.1117/12.2188025

28 August 2015 Probing plasmonic hot spots on single gold nanowires using combined near-field techniques

Patrick Hsia, Ludovic Douillard, Fabrice Charra, Sylvie Marguet, Sergei Kostcheev, Renaud J. B. Bachelot, Céline Fiorini-Debuisschert

Author Affiliations +

Proceedings Volume 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII; 95470F (2015) https://doi.org/10.1117/12.2188025
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

The plasmonic properties of individual gold nanowires (NW) have been investigated using both two-photon luminescence (2PL) coupled to atomic force microscopy (AFM) and photoemission electron microscopy (PEEM) associated to low-energy electron microscopy (LEEM) measurements. Using these complementary near-field characterization techniques, comparative studies between wires made either by colloidal chemistry (CC) or by e-beam lithography (EBL) have been undertaken towards a better understanding of the role of the wires crystallinity regarding its optical properties. Considering comparable excitation conditions, we show that wires made by colloidal synthesis exhibits quite similar field enhancement effects ("hot spots") as EBL NW, however their 2PL emission spectrum clearly reveals their crystalline properties.

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Patrick Hsia, Ludovic Douillard, Fabrice Charra, Sylvie Marguet, Sergei Kostcheev, Renaud J. B. Bachelot, and Céline Fiorini-Debuisschert "Probing plasmonic hot spots on single gold nanowires using combined near-field techniques", Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 95470F (28 August 2015); https://doi.org/10.1117/12.2188025

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