Profile effect on the feasibility of extinction-based localized surface plasmon resonance biosensors with metallic nanowires

Kyung Min Byun, Sung June Kim, Donghyun Kim

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

We investigate the effect of the cross-sectional profile of an array of metallic nanowires on the feasibility of a localized surface plasmon resonance (LSPR) biosensor. Calculations were performed using rigorous coupled-wave analysis with an emphasis on the extinction properties of the LSPR structure. The results indicate that the nanowire structure, particularly that of a T-proflle, delivers an extremely linear sensing performance over a wide range of the target refractive index with much enhanced sensitivity. The extinction-based LSPR structure also involves a relatively large dimension and thus is expected to provide a feasible biosensor using current semiconductor technology.

Original languageEnglish
Pages (from-to)3382-3389
Number of pages8
JournalApplied Optics
Volume45
Issue number14
DOIs
Publication statusPublished - 2006 May 10

All Science Journal Classification (ASJC) codes

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

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