Gold nanobelts as high confinement plasmonic waveguides.
basic_science · Level V
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- Record sourced from PubMed, PMID 24205882.
- Also identified by DOI 10.1021/nl4037356.
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Abstract
Plasmon propagation in thin plasmonic waveguides is strongly damped, making it difficult to study with diffraction-limited optics. Here we directly characterize plasmon propagation in gold nanobelts with incoherent light. The data indicate a short average propagation length of 0.94 μm but also reveal a weakly excited antisymmetric mode that has a propagation length greater than 10 μm with strong confinement of 2400 nm(2). These results demonstrate that high confinement and long propagation length can be achieved with thin plasmonic structures.
Medical subject headings
- Gold
- Nanostructures
- Nanotechnology