Refractive index sensing in aqueous environment using three different polymeric waveguide interferometers

M. Wang, Jussi Hiltunen, Risto Myllylä

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

Abstract

In this work, the performances of three developed polymer integrated optical sensors based on different waveguide configurations were evaluated for homogeneous refractive index (RI) sensing in aqueous environment. Young interferometer configuration with reference and sensing waveguide arms was utilized in sensor chips. Light from a laser source was end-fire coupled into the chips and interference pattern produced by the out coupled light was investigated. External fluidic pump was used to produce the analyte flow. The homogeneous bulk refractive index change was characterized by applying DI-water with varying glucose concentrations. With an interaction length of 1 cm a detection limit in the order of 10-5 ~ sub-10-6 refractive index unit (RIU) was determined. The sensing performances are compared among the sensors in terms of sensitivity, stability, multiparameter sensing ability, and fabrication and operation simplicity. The polymeric-inorganic composited rib waveguide configuration showed the highest performance and relatively simple fabrication process amongst the evaluated sensors.
Original languageEnglish
Title of host publicationOSAV'2012
Subtitle of host publication3rd International Topical Meeting on Optical Sensing and Artificial Vision
EditorsIgor Gurov
PublisherAmerican Institute of Physics AIP
Pages166-171
Volume1537
ISBN (Print)978-0-7354-1161-6
DOIs
Publication statusPublished - 2013
MoE publication typeNot Eligible
Event3rd International Topical Meeting on Optical Sensing and Artificial Vision, OSAV 2012 - Saint Petersburg, Russian Federation
Duration: 14 May 201217 May 2012

Publication series

SeriesAIP Conference Proceedings
Volume1537
ISSN0094-243X

Conference

Conference3rd International Topical Meeting on Optical Sensing and Artificial Vision, OSAV 2012
Abbreviated titleOSAV 2012
CountryRussian Federation
CitySaint Petersburg
Period14/05/1217/05/12

Keywords

  • integrated optics devices
  • polymer waveguides
  • sensors
  • young interferometer

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    Wang, M., Hiltunen, J., & Myllylä, R. (2013). Refractive index sensing in aqueous environment using three different polymeric waveguide interferometers. In I. Gurov (Ed.), OSAV'2012: 3rd International Topical Meeting on Optical Sensing and Artificial Vision (Vol. 1537, pp. 166-171). American Institute of Physics AIP. AIP Conference Proceedings, Vol.. 1537 https://doi.org/10.1063/1.4809707