Please use this identifier to cite or link to this item: http://repositorio.inesctec.pt/handle/123456789/6042
Title: Sensing Structure based on Surface Plasmonic Resonance in Single Mode Optical Fibers Chemically Etched
Authors: Luís Carlos Coelho
José Almeida
José Luís Santos
Ferreira,RAS
Andre,PS
Diana Viegas
Issue Date: 2013
Abstract: Many optical systems based on Surface Plasmon Resonance (SPR) have been developed for work as refractometers, chemical sensors or even for measure the thickness of metal and dielectric thin films. These kinds of systems are usually large, expensive and cannot be used for remote sensing. Optical fiber sensors based on SPR has been widely studied for the last 20 years with several configurations mostly using multimode optical fibers with large cores and plastic claddings. Sensors based on SPR present very high sensitivity to refractive index variations when compared to the traditional refractive index sensors. Here we propose a SPR sensor based in a single mode fiber. The fiber end is chemically etched by emersion in a 48% hydrofluoric acid solution, resulting a single mode fiber with the cladding removed in a small section. A resonance dip around 1580 nm was attained in good agreement with the simulation scenario that takes into account the real characteristics of the fiber.
URI: http://repositorio.inesctec.pt/handle/123456789/6042
http://dx.doi.org/10.1117/12.2026809
metadata.dc.type: conferenceObject
Publication
Appears in Collections:CAP - Articles in International Conferences
CRAS - Articles in International Conferences

Files in This Item:
File Description SizeFormat 
P-006-FTM.pdf
  Restricted Access
243.99 kBAdobe PDFThumbnail
View/Open Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.