Metal grating on a substrate nanostructure for sensor applications

A. Karabchevsky, O. Krasnykov, I. Abdulhalim, B. Hadad, A. Goldner, M. Auslender, S. Hava

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Extraordinary optical transmission via periodic array of sub-wavelength slits in a metal layer on a dielectric substrate is revisited for sensing applications. Numerical case studies using an in-house software tool showed two peaks of enhanced transmission, one being very sensitive to the ambient index and another to the substrate index. Based on this, we designed and realized an optical sensor with sensitivity of the order of 400 nm/RIU.

Original languageEnglish
Pages (from-to)170-175
Number of pages6
JournalPhotonics and Nanostructures - Fundamentals and Applications
Volume7
Issue number4
DOIs
StatePublished - 1 Dec 2009

Keywords

  • Diffraction gratings
  • Extraordinary optical transmission
  • Optical sensors

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