posted on 2024-02-23, 20:10authored bySachithra
T. Wanasinghe, Adelina Gjoni, Wade Burson, Caris Majeski, Bradley Zaslona, Aaron S. Rury
Maximizing the coherence
between the constituents of
molecular
materials remains a crucial goal toward the implementation of these
systems into everyday optoelectronic technologies. Here we experimentally
assess the ability of strong light–matter coupling in the collective
limit to reduce energetic disorder using porphyrin-based chromophores
in Fabry–Pérot (FP) microresonator structures. Following
characterization of cavity polaritons formed from chemically distinct
porphyrin dimers, we find that the peaks corresponding to the lower
polariton (LP) state in each sample do not possess widths consistent
with conventional theories. We model the behavior of the polariton
peak widths effectively using the results of spectroscopic theory.
We correlate differences in the suppression of excitonic energetic
disorder between our samples with microscopic light–matter
interactions and propose that the suppression stems from photonic
exchange. Our results demonstrate that cavity polariton formation
can suppress disorder and show researchers how to design coherence
into hybrid molecular material systems.