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Optical inspection of manufactured nanohole arrays to bridge the lab-industry gap

Abstract: Metallic nanohole arrays have shown their potential as sensing tools. Important research supported by sophisticated laboratory experiments have been recently carried out, that may help to develop practical devices to be implemented in the real life. To get this goal, the gap between industry and technology at the nanoscale level must be overcome. One of the major drawbacks is the quality inspection of the manufactured nanostructured surfaces to ensure a reliable sensing. In this paper we introduce an optical method, based on the Extraordinary Optical Transmission phenomenon, for an inspection of such surfaces at industrial level. Unlike usual techniques like scanning electron microscopy, our method gives at the same time, a quick map of the surface homogeneity together with its local plasmonic performance. Our results show that this method is reproducible and reliable as to give a ?seal of identification? and quality guarantee of the manufactured surface as basic element of a sensing device.

 Fuente: Optics & Laser Technology, vol. 116, Pag. 48-57 (2019)

Editorial: Elsevier

 Fecha de publicación: 01/08/2019

Nº de páginas: 10

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.optlastec.2019.03.010

ISSN: 0030-3992

Url de la publicación: https://doi.org/10.1016/j.optlastec.2019.03.010