AI Article Synopsis
- The study investigates the behavior of two-dimensional gold nano-triangles using advanced techniques like electron energy loss spectroscopy and scanning transmission electron microscopy.
- Researchers found that as the size of the nano-triangles increases, they shift from supporting localized surface plasmons to non-resonant propagating surface plasmon polaritons.
- Additionally, nano-triangles with grooves can exhibit both localized and propagating plasmons within the same energy range, showcasing versatile plasmonic properties.
Article Abstract
In this manuscript we report on a near field study of two-dimensional plasmonic gold nano-triangles using electron energy loss spectroscopy in combination with scanning transmission electron microscopy, as well as discontinuous Galerkin time-domain computations. With increasing nano-triangle size, we observe a transition from localized surface plasmons on small nano-triangles to non-resonant propagating surface plasmon polaritons on large nano-triangles. Furthermore we demonstrate that nano-triangles with a groove cut can support localized as well as propagating plasmons in the same energy range.
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| http://dx.doi.org/10.1364/OE.25.016947 | DOI Listing |
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