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Robust hybridization of nanostructured buried integrated optical waveguide systems with on-chip fluid handling for chemical analysis

  • K. B. Gylfason
  • , B. Sánchez
  • , A. Griol
  • , C. A. Barrios
  • , H. Sohlström
  • , M. J. Bañuls
  • , V. González-Pedro
  • , A. Maquieira
  • , M. Holgado
  • , R. Casquel
  • , D. Hill
  • , G. Stemme
  • Kungliga Tekniska Högskolan
  • ITACA–Universitat Politècnica de Valéncia
  • Universidad Politécnica de Madrid

Research output: Unpublished contribution to conferenceUnpublished Conference Paperpeer-review

Abstract

We report a method that enables the combination of integrated optical systems with on-chip fluid handling for chemical analysis, without compromising the functionality of either part. Utilizing a selective isotropic plasma etch of a sacrificial chromium etch-stop layer, fluidic connections can be made down to buried nanostructured optical sensing elements in a controlled manner. We describe the fabrication method and present an example application to a label-free assay of protein concentration based on optical slot-waveguide micro-ring resonator refractive index sensors.

Original languageEnglish
Pages399-401
Number of pages3
Publication statusPublished - 1 Jan 2008
Event12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008 - San Diego, CA, United States
Duration: 12 Oct 200816 Oct 2008

Conference

Conference12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008
Country/TerritoryUnited States
CitySan Diego, CA
Period12/10/0816/10/08

Keywords

  • Biosensing
  • Hybrid devices
  • Integrated optics
  • Slot-waveguides

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