ArticleNano letters2020
Cathodoluminescence Nanoscopy of 3D Plasmonic Networks.
Article in Nano letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Cathodoluminescence Enhancement Mechanisms in Silica Microspheres.Nanophotonics (Berlin, Germany) · 2026Article
- Article
- Dry synthesis of bi-layer nanoporous metal films as plasmonic metamaterial.Nanophotonics (Berlin, Germany) · 2024Article
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Authors and funding
3 authors.
Funding
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Abstract
Nanoporous metallic networks are endowed with the distinctive optical properties of strong field enhancement and spatial localization, raising the necessity to map the optical eigenmodes with high spatial resolution. In this work, we used cathodoluminescence (CL) to map the local electric fields of a three-dimensional (3D) silver network made of nanosized ligaments and holes over a broad spectral range. A multitude of neighboring hotspots at different frequencies and intensities are observed at subwavelength distances over the network. In contrast to well-defined plasmonic structures, the hotspots do not necessarily correlate with the network morphology, emphasizing the complexity and energy dissipation through the network. In addition, we show that the inherent connectivity of the networked structure plays a key optical role because a ligament with a single connected linker shows localized modes whereas an octopus-like ligament with multiple connections permits energy propagation through the network.
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