Plasmonic nanoparticle assemblies are a materials platform in which optical modes, resonant frequencies, and near-field intensities can be specified by the number and position of nanoparticles in a cluster. A current challenge is to achieve clusters with higher yields and new types of shapes. In this Letter, we show that a broad range of plasmonic nanoshell nanoclusters can be assembled onto a lithographically defined elastomeric substrate with relatively high yields using templated assembly. We assemble and measure the optical properties of three cluster types: Fano-resonant heptamers, linear chains, and rings of nanoparticles. The yield of heptamer clusters is measured to be over 30%. The assembly of plasmonic nanoclusters on an elastomer paves the way for new classes of plasmonic nanocircuits and colloidal metamaterials that can be transfer-printed onto various substrate media.
Plasmonic mode engineering with templated self-assembled nanoclusters.
Jonathan A. Fan,Kui Bao,Li Sun,J. Bao,V. Manoharan,P. Nordlander,F. Capasso
Published 2012 in Nano letters (Print)
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- Publication year
2012
- Venue
Nano letters (Print)
- Publication date
2012-09-11
- Fields of study
Medicine, Materials Science, Physics, Engineering
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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