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5 October 2023 Remote plasmonic-enhanced Raman spectroscopy: exploring plasmon-molecule coupling over distances greater than 100 nm
Takeo Minamikawa
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Proceedings Volume PC12654, Enhanced Spectroscopies and Nanoimaging 2023; PC126540K (2023) https://doi.org/10.1117/12.2675349
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States
Abstract
We proposed a new method for remote-plasmonic enhanced Raman scattering (RPERS) spectroscopy that overcomes the limitations of surface-enhanced Raman scattering (SERS) spectroscopy. RPERS uses long-range molecular-plasmon coupling to achieve high sensitivity and quantification in enhanced Raman spectroscopy. The authors constructed RPERS substrates consisting of Ag nanoislands and columnar silica structures, which demonstrated a 2x10^7 enhancement in Raman scattering for Rhodamine 6G molecules, even when the metal nanostructures and the analyte molecules were over 100 nm apart. The RPERS substrates also exhibited improved reproducibility, stability, and sensitivity compared to conventional SERS substrates.
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(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Takeo Minamikawa "Remote plasmonic-enhanced Raman spectroscopy: exploring plasmon-molecule coupling over distances greater than 100 nm", Proc. SPIE PC12654, Enhanced Spectroscopies and Nanoimaging 2023, PC126540K (5 October 2023); https://doi.org/10.1117/12.2675349
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KEYWORDS
Raman spectroscopy
Molecules
Raman scattering
Nanostructures
Surface enhanced Raman spectroscopy
Molecular spectroscopy
Spectroscopy
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