1 research outputs found
Quantum Electrodynamic Behavior of Chlorophyll in a Plasmonic Nanocavity
Plasmonic nanocavities have been used as a novel platform
for studying
strong light–matter coupling, opening access to quantum chemistry,
material science, and enhanced sensing. However, the biomolecular
study of cavity quantum electrodynamics (QED) is lacking. Here, we
report the quantum electrodynamic behavior of chlorophyll-a in a plasmonic nanocavity. We construct an extreme plasmonic
nanocavity using Au nanocages with various linker molecules and Au
mirrors to obtain a strong coupling regime. Plasmon resonance energy
transfer (PRET)-based hyperspectral imaging is applied to study the
electrodynamic behaviors of chlorophyll-a in the
nanocavity. Furthermore, we observe the energy level splitting of
chlorophyll-a, similar to the cavity QED effects
due to the light–matter interactions in the cavity. Our study
will provide insight for further studies in quantum biological electron
or energy transfer, electrodynamics, the electron transport chain
of mitochondria, and energy harvesting, sensing, and conversion in
both biological and biophysical systems