Enhanced luminescence of organic/metal nanostructure for grating coupler active long-range surface plasmonic device

Nan-Fu Chiu, Chii Wann Lin, Jiun Haw Lee, Chieh Hsiung Kuan, Kuang Chong Wu, Chih Kung Lee

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Abstract

This letter is intended to demonstrate the effect of coupled active long-range surface plasmon polaritons (SPPs) on the plasmonics response of a lamellar grating nanostructure with organic material on the surface. The phenomenon of nano-optics gives rise to a selective spectral response and a local field enhancement. The authors' fabricated device consists of coupled organic/metal nanostructure with specific width and symmetric dielectric structure. The interaction between organic/metal interface SPPs can allow specific directional emission rather than isotropic emission. The authors present recent experimental results and discuss potential applications of such an active plasmonic biosensor with enhanced resonance energy emission due to interactions on the organic/metal nanograting.

Original languageEnglish
Article number083114
JournalApplied Physics Letters
Volume91
Issue number8
DOIs
Publication statusPublished - 2007 Aug 31

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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