Sensitivity enhancement of guided-wave surface-plasmon resonance sensors

Amit Lahav, Mark Auslander, I. Abdulhalim

Research output: Contribution to journalArticlepeer-review

235 Scopus citations

Abstract

It is demonstrated theoretically and experimentally that, by using the guided-wave surface-plasmon sensor configuration with a top layer of dielectric thin film (10-15 nm) having a high value of the real part of the dielectric function, it is possible to improve the sensitivity of the sensor up to 1 order of magnitude. The stability is improved because the thin nanolayer acts as a protection layer for the metal. The enhancement is due to the increase in the interaction volume and the evanescent field enhancement near the top layer-analyte interface.

Original languageEnglish
Pages (from-to)2539-2541
Number of pages3
JournalOptics Letters
Volume33
Issue number21
DOIs
StatePublished - 1 Nov 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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