Plasmonic Modes and Fluorescence Enhancement Coupling Mechanism: A Case with a Nanostructured Grating
The recent development and technological improvement in dealing with plasmonic metasurfaces has triggered a series of interesting applications related to sensing challenges. Fluorescence has been one of the most studied tools within such a context. With this in mind, we used some well characterized...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/23/4339 |
| _version_ | 1797462537486204928 |
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| author | Margherita Angelini Eliana Manobianco Paola Pellacani Francesco Floris Franco Marabelli |
| author_facet | Margherita Angelini Eliana Manobianco Paola Pellacani Francesco Floris Franco Marabelli |
| author_sort | Margherita Angelini |
| collection | DOAJ |
| description | The recent development and technological improvement in dealing with plasmonic metasurfaces has triggered a series of interesting applications related to sensing challenges. Fluorescence has been one of the most studied tools within such a context. With this in mind, we used some well characterized structures supporting plasmonic resonances to study their influence on the emission efficiency of a fluorophore. An extended optical analysis and a complementary investigation through finite-difference time-domain (FDTD) simulations have been combined to understand the coupling mechanism between the excitation of plasmonic modes and the fluorescence absorption and emission processes. The results provide evidence of the spectral shape dependence of fluorescence on the plasmonic field distribution together with a further relationship connected with the enhancement of its signal. It has made evident that the spectral region characterized by the largest relative enhancement closely corresponds to the strongest signatures of the plasmonic modes, as described by both the optical measurements and the FDTD findings. |
| first_indexed | 2024-03-09T17:37:59Z |
| format | Article |
| id | doaj.art-b673a4cce6044221a0eda071aee685ff |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T17:37:59Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-b673a4cce6044221a0eda071aee685ff2023-11-24T11:49:21ZengMDPI AGNanomaterials2079-49912022-12-011223433910.3390/nano12234339Plasmonic Modes and Fluorescence Enhancement Coupling Mechanism: A Case with a Nanostructured GratingMargherita Angelini0Eliana Manobianco1Paola Pellacani2Francesco Floris3Franco Marabelli4Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, ItalyPlasmore S.r.l, Via Vittorio Emanuele II 4, 27100 Pavia, ItalyPlasmore S.r.l, Via Vittorio Emanuele II 4, 27100 Pavia, ItalyDepartment of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, ItalyDepartment of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, ItalyThe recent development and technological improvement in dealing with plasmonic metasurfaces has triggered a series of interesting applications related to sensing challenges. Fluorescence has been one of the most studied tools within such a context. With this in mind, we used some well characterized structures supporting plasmonic resonances to study their influence on the emission efficiency of a fluorophore. An extended optical analysis and a complementary investigation through finite-difference time-domain (FDTD) simulations have been combined to understand the coupling mechanism between the excitation of plasmonic modes and the fluorescence absorption and emission processes. The results provide evidence of the spectral shape dependence of fluorescence on the plasmonic field distribution together with a further relationship connected with the enhancement of its signal. It has made evident that the spectral region characterized by the largest relative enhancement closely corresponds to the strongest signatures of the plasmonic modes, as described by both the optical measurements and the FDTD findings.https://www.mdpi.com/2079-4991/12/23/4339fluorescencesurface plasmon resonanceelectric field coupling mechanismoptical characterizationFDTD simulation |
| spellingShingle | Margherita Angelini Eliana Manobianco Paola Pellacani Francesco Floris Franco Marabelli Plasmonic Modes and Fluorescence Enhancement Coupling Mechanism: A Case with a Nanostructured Grating Nanomaterials fluorescence surface plasmon resonance electric field coupling mechanism optical characterization FDTD simulation |
| title | Plasmonic Modes and Fluorescence Enhancement Coupling Mechanism: A Case with a Nanostructured Grating |
| title_full | Plasmonic Modes and Fluorescence Enhancement Coupling Mechanism: A Case with a Nanostructured Grating |
| title_fullStr | Plasmonic Modes and Fluorescence Enhancement Coupling Mechanism: A Case with a Nanostructured Grating |
| title_full_unstemmed | Plasmonic Modes and Fluorescence Enhancement Coupling Mechanism: A Case with a Nanostructured Grating |
| title_short | Plasmonic Modes and Fluorescence Enhancement Coupling Mechanism: A Case with a Nanostructured Grating |
| title_sort | plasmonic modes and fluorescence enhancement coupling mechanism a case with a nanostructured grating |
| topic | fluorescence surface plasmon resonance electric field coupling mechanism optical characterization FDTD simulation |
| url | https://www.mdpi.com/2079-4991/12/23/4339 |
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