Enhancement and tunability of active plasmonic by multilayer grating coupled emission

Nan Fu Chiu, Chun Yu, Shou Yu Nien, Jiun Haw Lee, Chieh Hsiung Kuan, Kuang Chong Wu, Chih Kung Lee, Chii Wann Lin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)


The effect of coupled mode surface plasmon polaritons (SPPs) on the active emission of a nanostructure grating with organic semiconductor material, AIq3, on the surface was investigated in this study. We report surface plasmon grating coupled emission (SPGCE) from excited organic layer on metal grating in both organic/metal (2-Layer) and organic/metal/organic/metal (4-Layer) structures. The dispersion relation was obtained from angle-resolved photoluminescence measurement. The resultant emission intensity can have up to 6 times enhancement on the 4Layer device and the Full-Width Half-Maximum (FWHM) is less than 50 nm. The combination of SPPs on organic/metal interface allows specific directional emission and color appearance of Alq3 fluorophores. Potential applications of such an active plasmonics with enhanced resonant energy emission due to interactions on the organic/metal nano-grating as biosensor were presented and discussed.

Original languageEnglish
Pages (from-to)11608-11615
Number of pages8
JournalOptics Express
Issue number18
Publication statusPublished - 2007 Sept 9
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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