What is it about?

Light emitters (fluorophors, luminescent quantum dots) can shine brighter when placed near nanostructured metallic surfaces. Here we study the emission of fluorophors located near the surface of silver half-shells arranged in parallel linear chains, to identify the nanometric locations at which the emission enhancement takes place.

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Why is it important?

Knowing details on the emission enhancement distribution with respect to topography, should prove useful for improved evaluations of enhancement factors and a more rational design of efficiency-optimized substrates in the near future. Due to the polarized optical response of the proposed linear plasmonic arrays , specific applications such as hidden tags for anti-counterfeiting or plasmon-enhanced photodetection can be particularly foreseen. Furthermore, these arrays exhibit controllably aligned and precisely positioned hot spots (i.e., high enhancement sites at interparticle junctions) that can be individually addressed for fundamental studies.

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This page is a summary of: Surface-enhanced fluorescence imaging on linear arrays of plasmonic half-shells, The Journal of Chemical Physics, October 2020, American Institute of Physics,
DOI: 10.1063/5.0021906.
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