Effect of paired apertures in a periodic hole array on higher order plasmon modes

Yu Cheng Chen*, Hui Hsin Hsiao, Chun Ti Lu, Yi Tsung Chang, Hung Hsin Chen, Fang Tzu Chuang, Shao Yu Huang, Chih Wei Yu, Hung Chun Chang, Si Chen Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We demonstrate that the transmission of higher-order surface plasmon modes in the mid-infrared range can be enhanced through rectangular hole array on the basis of paired apertures. Experiments prove that enhanced high-order transmission can be generated by either identical shapes or combinations of different hole shapes in pairs. The structure factor is adopted to explain the observed intensity of enhanced transmission. Numerical simulations of the enhanced second-order mode verify a significant field enhancement in a unit cell of pairs. It is clarified that the separation between the paired apertures and the paired resonance is the key to determine certain higher-order plasmon modes to be enhanced.

Original languageEnglish
Article number6328242
Pages (from-to)2052-2055
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number22
Publication statusPublished - 2012
Externally publishedYes


  • Higher order
  • paired apertures
  • surface plasmon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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