Nanosphere lithography for advanced all fiber Sers probes

Marco Pisco; Francesco Galeotti; Giuseppe Quero; Giorgio Grisci; Alberto Micco; L. Mercaldo; P. Delli Veneri; Andrea Cusano

doi:10.1117/12.2235997

30 May 2016 Nanosphere lithography for advanced all fiber Sers probes

Marco Pisco, Francesco Galeotti, Giuseppe Quero, Giorgio Grisci, Alberto Micco, L. Mercaldo, P. Delli Veneri, Andrea Cusano

Author Affiliations +

Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 99161S (2016) https://doi.org/10.1117/12.2235997
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland

Abstract

In this work, we report a straightforward and cost-effective fabrication route for the development of nano-patterned optical fiber tips. The technique is based on self-assembling polystyrene microspheres at the air/water interface and on their successive transferring on the fiber tip of single mode optical fiber. By applying to the fiber further treatments like particle size reduction, metal coating and sphere removal, different periodic structures have been conveniently realized. The morphological analysis reveals indeed the successful creation on the optical fiber tip of regular metallic-dielectric spheres’ arrays as well as metallic patterns with dimensional features down to a submicron scale. Finally, as proof of concept, we demonstrated the capability of the realized patterns to work as efficient Surface Enhanced Raman Spectroscopy (SERS) fiber probes.

Citation Download Citation

Marco Pisco, Francesco Galeotti, Giuseppe Quero, Giorgio Grisci, Alberto Micco, L. Mercaldo, P. Delli Veneri, and Andrea Cusano "Nanosphere lithography for advanced all fiber Sers probes", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99161S (30 May 2016); https://doi.org/10.1117/12.2235997

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