Uncovering low-frequency vibrations in surface-enhanced Raman of organic molecules
Alexandra Boehmke Amoruso,
Roberto A. Boto,
Eoin Elliot
et al.
Abstract:Accessing the terahertz (THz) spectral domain through surface-enhanced Raman spectroscopy (SERS) is challenging and opens up the study of low-frequency molecular and electronic excitations. Compared to direct THz probing of heterogenous ensembles, the extreme plasmonic confinement of visible light to deep sub-wavelength scales allows the study of hundreds or even single molecules. We show that self-assembled molecular monolayers of a set of simple aromatic thiols confined inside single-particle plasmonic nanoc… Show more
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