Grating-coupled transmission-type surface plasmon resonance sensors based on dielectric and metallic gratings

Kyung Min Byun, Sung June Kim, Donghyun Kim

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We investigated grating-coupled transmission-type surface plasmon resonance (SPR) for sensing applications. In the transmission-type SPR structure, propagating surface plasmons are outcoupled to radiation modes by dielectric and metallic gratings on a metal film. The results calculated in air and water suggest that the proposed structures present extremely linear sensing characteristics. In terms of a figure of merit, a metallic grating-based structure performs 5.4 and 3.7 times better than that of a dielectric grating in air and water, respectively.

Original languageEnglish
Pages (from-to)5703-5708
Number of pages6
JournalApplied Optics
Issue number23
Publication statusPublished - 2007 Aug 10


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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