Periodic metal resonator chains for Surface Enhanced Raman Scattering (SERS)
Jan Sievers, Frank Heyroth, Sven Schlenker, Georg Schmidt and, Alexander Sprafke, Marcel Below, Carsten Reinhardt, J\"org Schilling
TL;DR
This paper investigates how periodic chains of gold discs create plasmonic resonances that significantly enhance SERS signals, with potential for designing improved nanostructures for molecular detection.
Contribution
It demonstrates the impact of plasmonic grating resonances in gold disc chains on SERS enhancement and explains the coupling mechanisms involved.
Findings
SERS signal peaks when laser matches plasmonic resonance
Resonance shows polarization dependence
Design insights for optimized SERS substrates
Abstract
A periodic arrangement of chains of gold discs shows pronounced plasmonic grating resonances. These have a clear impact on the Surface Enhanced Raman Scattering (SERS)-signal from 4-methylbenzenethiol molecules which form self-assembled monolayers on the gold surface: Besides a clear polarisation dependence the SERS-spectra also exhibit a maximum when the excitation laser wavelength matches the plamonic grating resonance. These features are explained by a combined near and far field coupling of the individual plasmonic dipoles allowing the design of optimized nanostructures for effective SERS-substrates in the future.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.