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Optical fiber SERS probe achieved by colloidal photonic crystal and gold nano-particles
Author(s): Lucia Sansone; Marianna Pannico; Pellegrino Musto; Stefania Campopiano; Michele Giordano; Agostino Iadicicco
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Paper Abstract

This work presents a metal-dielectric colloidal crystal (MDCC) structures used as the sensing layer of an optical fiber SERS probe working in optrode configuration. The MDCC permits to combine localized surface plasmon resonance (LSPR) of noble metallic nanoparticles and photonic bandgap (PBG) of colloidal type photonic crystals (PhCs); while MDCCs received attention to develop enhanced SERS substrates, the integration with optical fiber technology still represents open challenges. The present paper reports recent results about MDCCs fabricated directly onto fiber optic tip surface by successive depositions of PS-based Colloidal Crystal and Au-NanoParticles. Our goal is the fabrication of miniaturized fiber optic devices for SERS sensing applications. For the sensing test, the fiber probes were immersed in a 100μM aqueous solution of Rhodamine (R6G). Then, preliminary SERS results were retrieved by a Labspec Aramis confocal Raman spectrometer.

Paper Details

Date Published: 28 August 2019
PDF: 4 pages
Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 1119919 (28 August 2019); doi: 10.1117/12.2540115
Show Author Affiliations
Lucia Sansone, Institute for Polymers, Composites and Biomaterials, CNR (Italy)
Marianna Pannico, Institute for Polymers, Composites and Biomaterials, CNR (Italy)
Pellegrino Musto, Institute for Polymers, Composites and Biomaterials, CNR (Italy)
Stefania Campopiano, Univ. degli Studi di Napoli Parthenope (Italy)
Michele Giordano, Institute for Polymers, Composites and Biomaterials, CNR (Italy)
Agostino Iadicicco, Univ. degli Studi di Napoli Parthenope (Italy)


Published in SPIE Proceedings Vol. 11199:
Seventh European Workshop on Optical Fibre Sensors
Kyriacos Kalli; Sinead O. O'Keeffe; Gilberto Brambilla, Editor(s)

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