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Fluorescence emission angular dependence on a nanostructured plasmonic grating
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  • Margherita Angelini,
  • Eliana Manobianco,
  • Paola Pellacani,
  • Francesco Floris,
  • Franco Marabelli
Margherita Angelini
Universita degli Studi di Pavia

Corresponding Author:[email protected]

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Eliana Manobianco
Plasmore srl
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Paola Pellacani
Plasmore srl
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Francesco Floris
Universita degli Studi di Pavia
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Franco Marabelli
Universita degli Studi di Pavia
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Abstract

Plasmonic gratings provide an advantageous platform for fluorescence sensing due to their compatibility with functionalization techniques, imaging detection, and the potential for signal enhancement. Among traditional fluorescence detection methods, microscopes are commonly used tools. The interaction between dye fluorescence processes and the plasmonic modes of the grating strongly depends on the measurement configuration and is influenced by the dispersion and spectral characteristics of the plasmonic modes. In our study, we investigated the angular behavior of the fluorescence emission from ATTO700 dye by varying the collection angle using a standard optical microscope coupled with a spectrometer. Our results show a clear dependence of fluorescence emission in terms of spectral shape on the collection angle that can be attributed to plasmonic mode dispersion.
15 Sep 2023Submitted to Applied Research
15 Sep 2023Submission Checks Completed
15 Sep 2023Assigned to Editor
03 Nov 2023Reviewer(s) Assigned
28 Mar 2024Reviewer(s) Assigned
17 Apr 2024Review(s) Completed, Editorial Evaluation Pending
17 Apr 2024Editorial Decision: Accept