Artikel ; Online: Simultaneous Surface-Enhanced Raman Scattering with a Kerr Gate for Fluorescence Suppression.
The journal of physical chemistry letters
2024 Band 15, Heft 2, Seite(n) 608–615
Abstract: The combination of surface-enhanced and Kerr-gated Raman spectroscopy for the enhancement of the Raman signal and suppression of fluorescence is reported. Surface-enhanced Raman scattering (SERS)-active gold substrates were demonstrated for the expansion ...
Abstract | The combination of surface-enhanced and Kerr-gated Raman spectroscopy for the enhancement of the Raman signal and suppression of fluorescence is reported. Surface-enhanced Raman scattering (SERS)-active gold substrates were demonstrated for the expansion of the surface generality of optical Kerr-gated Raman spectroscopy, broadening its applicability to the study of analytes that show a weak Raman signal in highly fluorescent media under (pre)resonant conditions. This approach is highlighted by the well-defined spectra of rhodamine 6G, Nile red, and Nile blue. The Raman spectra of fluorescent dyes were obtained only when SERS-active substrates were used in combination with the Kerr gate. To achieve enhancement of the weaker Raman scattering, Au films with different roughnesses or Au-core-shell-isolated nanoparticles (SHINs) were used. The use of SHINs enabled measurement of fluorescent dyes on non-SERS-active, optically flat Au, Cu, and Al substrates. |
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Sprache | Englisch |
Erscheinungsdatum | 2024-01-10 |
Erscheinungsland | United States |
Dokumenttyp | Journal Article |
ISSN | 1948-7185 |
ISSN (online) | 1948-7185 |
DOI | 10.1021/acs.jpclett.3c02926 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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