Double wavelength infrared emission by localized surface plasmonic thermal emitter

Hung Hsin Chen, Hui Hsin Hsiao, Hung Chun Chang, Wei Lun Huang, Si Chen Lee

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

A double wavelength infrared emission by plasmonic thermal emitter using stacked Au/SiO2/Au/SiO2/Au structure was investigated. The effective refractive index of sandwiched SiO2 is higher than normal value due to the coupling of surface plasmons at the top and bottom Au/SiO 2 interfaces. Two different localized surface plasmon modes were excited with the same metal width, but different SiO2 layer thicknesses in top and bottom Au/SiO2/Au tri-layer structures. The measured dispersion relation diagram and simulation demonstrated that the resonances were localized resonance and the distribution of magnetic field was concentrated at the central SiO2 layer between two Au layers.

Original languageEnglish
Article number83114
JournalApplied Physics Letters
Volume104
Issue number8
DOIs
Publication statusPublished - 2014
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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