Polaritonic Chemistry Enabled by Non-Local Metasurfaces
arxiv(2024)
Abstract
Vibrational strong coupling can modify chemical reaction pathways in
unconventional ways. Thus far, Fabry-Perot cavities formed by pairs of facing
mirrors have been mostly utilized to achieve vibrational strong coupling. In
this study, we demonstrate the application of plasmonic microparticle arrays
defining non-local metasurfaces that can sustain surface lattice resonances as
a novel tool to enable chemical reactions under vibrational strong coupling. We
show that the solvolysis kinetics of para-nitrophenyl acetate can be
accelerated by a factor of 2.7 by strong coupling to the carbonyl bond of the
solvent and the solute with a surface lattice resonance. Our work introduces a
new platform to investigate and control polaritonic chemical reactions. In
contrast to Fabry-Perot cavities, metasurfaces define open optical cavities
with single surfaces, which removes alignment hurdles, facilitating polaritonic
chemistry across large areas.
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