Plasmonic infrared bandstop reflective filter

C.-M. Wang, Din-ping Tsai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


Various types of free-space plasmonic bandstop filters are reviewed. The plasmonic multilayer structure shows multiple localized surface plasmon (LSP) resonance modes with extraordinary high angle tolerance. Through modifying the plasmonic multilayer structure to a plasmonic T-shaped array, the multiple LSP modes can be suppressed. The filtering properties present a single resonance dip with a low sideband. Through modifying the plasmonic T-shaped array to be an asymmetric one, dual resonance modes can be easily designed. Finally, a nanoporous Au film is proposed to act as a bandstop filter. The fabrication processes are simple and the resonance dip can be manipulated by altering the annealing temperature. © 1995-2012 IEEE.
Original languageEnglish
Article number6508917
JournalIEEE Journal on Selected Topics in Quantum Electronics
Issue number3
Publication statusPublished - 20 May 2013
Externally publishedYes


  • Optical filter
  • plasmonics
  • porous Au film

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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