chemistry-2018-posters-accepted-abstracts

29 / 32

E u r o S c i C o n C o n f e r e n c e o n
Chemistry
2018
Chemistry 2018
Journal of Organic & Inorganic Chemistry
ISSN 2472-1123
F e b r u a r y 1 9 - 2 0 , 2 0 1 8
P a r i s , F r a n c e
Page 74
An open microcavity (OMC) is an optical system that is
composed of two mirrors, where one is fixed and the
second is on a movable stage. OMCs enable tuning the
optical resonances of the system and insertion of different
materials between the mirrors and are therefore of large
scientific interest due to their many potential applications.
Strong light-matter coupling of the vibrational transitions of
organic molecules with the optical modes of a microcavity
generates new polaritonic states in the mid-infrared (mid-
IR) spectral region. Here we achieve strong light-matter
coupling in the mid-IR using a low optical-loss OMC that is
wavelength-tunable via a piezoelectric actuator. A thin film of
poly (methyl methacrylate) (PMMA) was deposited onto one
of the mirrors to couple the narrow and intense absorption
peak of the carbonyl stretch mode at 1731 cm-1 to the
OMC. Polaritonic states are observed in FTIR transmission
measurements when an OMC resonance is matched to the
carbonyl stretch. By dynamically varying the cavity photon
mode around the resonance condition, we determine
Vibrational strong
light-matter coupling
using a wavelength-
tunable mid-infrared
open microcavity
Omree Kapon1, 2, Rena
Yitzhari1, 2, Alexander Palat-
nik1, 2 and Yaakov R Tischler
1Bar-Ilan University, Israel
2Institute for Nanotechnology and Advanced
Materials, Israel
the normal mode polariton dispersion relation and obtain a
maximum Rabi-splitting ℏΩR=7.0±0.18 meV. Different cavity
line widths and Rabi-splittings can be achieved by changing the
mirror separation, thus providing control of the coupling strength
relative to dephasing. The ability to insert multiple materials
inside an OMC and generate strong light-matter coupling over a
large range of wavelengths can open new paths toward chemical
reaction modification and energy transfer studies in the mid-IR.
J Org Inorg Chem 2018, Volume: 4
DOI: 10.21767/2472-1123-C1-003