Optical fiber humidity sensor based on surface plasmon resonance in the infra-red region

  • M. Hernáez*
  • , C. R. Zamarreño
  • , I. R. Matías
  • , F. J. Arregui
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Here, the fabrication and characterization of a novel optical fiber humidity sensor based on surface plasmon resonance (SPR) in the infra-red region is presented. Firstly, an indium tin oxide (ITO) coating is deposited onto a 200 μm core diameter optical fiber causing the shift of the SPR wavelength to the infra-red region. Then, the LbL method is used to deposit a polymeric coating onto the ITO layer. The variations in the external humidity originated changes in the thickness and refractive index of the polymeric coating and hence in the resonance.

Original languageEnglish
Title of host publication20th International Conference on Optical Fibre Sensors
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event20th International Conference on Optical Fibre Sensors - Edinburgh, United Kingdom
Duration: 5 Oct 20099 Oct 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7503
ISSN (Print)0277-786X

Conference

Conference20th International Conference on Optical Fibre Sensors
Country/TerritoryUnited Kingdom
CityEdinburgh
Period5/10/099/10/09

Keywords

  • Humidity sensor
  • Indium tin oxide
  • Layer by Layer
  • Optical fiber
  • Plasmon resonance

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