Hybridised extraordinary optical transmission in plasmonic cavity

Author

Briscoe, Jayson L. ; Cho, S.-Y.

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

Volume

50

Issue

24

fYear

2014

fDate

11 20 2014

Firstpage

1860

Lastpage

1862

Abstract

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.

Keywords

Fabry-Perot resonators; gold; metallic thin films; nanophotonics; nanostructured materials; plasmonics; polaritons; surface plasmons; Au; dielectric cavity; excited surface plasmon polaritons; hybridised extraordinary optical transmission; nanopatterned gold film; optical Fabry-Perot modes; optical feedback; periodically coupled metallic nanostructure; planar gold/dielectric cavity configuration; plasmonic cavity; spectral response; thin SU-8 dielectric cavity;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2014.2818

Filename

6969298