Hybridised extraordinary optical transmission in plasmonic cavity

Modification of the spectral response of a periodically coupled metallic nanostructure is reported. A thin SU-8 dielectric cavity was fabricated on a nanopatterned gold film. Additional resonance peaks are observed in the transmitted spectrum due to the interaction between excited surface plasmon po...

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Bibliographic Details
Published in:Electronics letters 2014-11, Vol.50 (24), p.1860-1862
Main Authors: Briscoe, J.L, Cho, S.-Y
Format: Article
Language:English
Subjects:
dielectric cavity
Dielectrics
Excitation spectra
excited surface plasmon polaritons
Fabry‐Perot resonators
Gold
Holes
hybridised extraordinary optical transmission
metallic thin films
nanopatterned gold film
nanophotonics
Nanostructure
nanostructured materials
optical Fabry–Perot modes
Optical feedback
periodically coupled metallic nanostructure
Photonics
planar gold/dielectric cavity configuration
plasmonic cavity
Plasmonics
Plasmons
polaritons
Spectra
spectral response
surface plasmons
thin SU‐8 dielectric cavity
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Summary:Modification of the spectral response of a periodically coupled metallic nanostructure is reported. A thin SU-8 dielectric cavity was fabricated on a nanopatterned gold film. Additional resonance peaks are observed in the transmitted spectrum due to the interaction between excited surface plasmon polaritons (SPPs) and optical feedback provided by the dielectric cavity. A comparison with transmitted spectra from a planar gold/dielectric cavity configuration confirms the hybridisation of extraordinary optical transmission through interaction between SPPs and optical Fabry-Pérot modes in the cavity.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2014.2818