Tunable surface plasmon resonance on an elastomeric substrate

Date
2009-05
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Source Title
Optics Express
Print ISSN
Electronic ISSN
1094-4087
Publisher
Optical Society of American (OSA)
Volume
17
Issue
10
Pages
8542 - 8547
Language
English
Type
Article
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Abstract

In this study, we demonstrate that periods of metallic gratings on elastomeric substrates can be tuned with external strain and hence are found to control the resonance condition of surface plasmon polaritons. We have excited the plasmon resonance on the elastomeric grating coated with gold and silver. The grating period is increased up to 25% by applying an external mechanical strain. The tunability of the elastomeric substrate provides the opportunity to use such gratings as efficient surface enhanced Raman spectroscopy substrates. It's been demonstrated that the Raman signal can be maximized by applying an external mechanical strain to the elastomeric grating. © 2009 Optical Society of America.

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Keywords
Plasmons, Raman spectroscopy, Silver, Surface plasmon resonance, Efficient surface, Elastomeric gratings, Elastomeric substrates, External strains, Gold and silver, Grating periods, Mechanical strain, Metallic gratings, Plasmon resonances, Raman signal, Resonance condition, Surface plasmon polaritons, Tunability, Substrates
Citation
Published Version (Please cite this version)