Abstract
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 language | English |
|---|---|
| Article number | 6508917 |
| Journal | IEEE Journal on Selected Topics in Quantum Electronics |
| Volume | 19 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 20 May 2013 |
| Externally published | Yes |
Keywords
- Optical filter
- plasmonics
- porous Au film
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
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