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Nanostructured sapphire optical fiber with Au nanorods entrapped in the cladding for gas sensing in harsh environments (Conference Presentation)
Author(s): Kai Liu; Jeffrey Wuenschell; Paul Ohodnicki; Henry Du

Paper Abstract

This presentation reports the use of nanostructured sapphire optical fiber (NSOF) with Au nanorods entrapped in anodized aluminum oxide (AAO) cladding for surface-enhanced Raman spectroscopy (SERS) sensing at elevated temperatures. Specifically, Au nanorods were fabricated in AAO pore channels by in-situ electroless reduction aided with Au nanoparticle catalysts. We show that the AAO pore channels endow the Au nanorods with enhanced thermal stability through geometrical confinement at up to 1000°C. The NSOF with entrapped Au nanorods was used for SERS measurements at temperatures ranging from room temperature to 800°C. The capacity of the novel fiber structure for sensing of hot gases in harsh environments was demonstrated.

Paper Details

Date Published: 14 May 2019
PDF
Proc. SPIE 11000, Fiber Optic Sensors and Applications XVI, 110000F (14 May 2019); doi: 10.1117/12.2518770
Show Author Affiliations
Kai Liu, Stevens Institute of Technology (United States)
Jeffrey Wuenschell, National Energy Technology Lab. (United States)
Paul Ohodnicki, National Energy Technology Lab. (United States)
Henry Du, Stevens Institute of Technology (United States)


Published in SPIE Proceedings Vol. 11000:
Fiber Optic Sensors and Applications XVI
Robert A. Lieberman; Glen A. Sanders; Ingrid U. Scheel, Editor(s)

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