Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session T05: Organic Photonics: Light-Matter Interactions in Polymers and Organic Molecules
11:30 AM–2:06 PM,
Thursday, March 9, 2023
Room: Room 128
Sponsoring
Units:
DPOLY DSOFT DMP FIAP
Chair: Laure Kayser, University of Delaware
Abstract: T05.00007 : Organic Exciton-Polariton Lattices*
12:42 PM–12:54 PM
Presenter:
Ravindra Kumar Yadav
(The City college of New York)
Authors:
Ravindra Kumar Yadav
(The City college of New York)
Sitakanta Satapathy
(The City College of New York)
Prathmesh Deshmukh
(The City College of New York)
Biswajit Datta
(The City College of New York)
Addhyaya Sharma
(The City College of New York)
Vinod M Menon
(The City College of New York)
Collaboration:
Ravindra Kumar Yadav, Sitakanta Satapathy, Prathmesh Deshmukh, Biswajit Datta, Addhyaya Sharma, Vinod M. Menon*
systems to realize analog Hamiltonian simulators and physical computing architectures. Prior work on
polariton condensate lattices have primarily been on GaAs based systems with recent advent of organic
molecules and perovskite systems allowing room temperature operation. However in most of these room
temperature systems, the lattices are defined using a bottom up approach by patterning the bottom mirrors.
Here we report an approach that uses Focused Ion Beam (FIB) etching to pattern a planar microcavity.
Such etching of the cavity allows realizing high contrast lattices as was shown previously in GaAs systems
[1]. To generate exciton-polaritons at room temperature, we use the host-guest excitons of small molecular
ionic lattice emitters (SMILES) due to their high photostability and fluorescence quantum yield [2].Here,
we demonstrate patterning different lattice geometries and engineering of potential trap by controlling the
etch depth. We characterized the fabricated lattice by measuring bandstructure and optical non-linearities
using energy resolved wavevector imaging of photoluminescence and power-dependent photoluminescence
measurementa. The present approach allows us to study a variety of polariton condensate lattices at room
temperature using a top down approach without compromising on the quantum yield of the organic
excitonic material embedded in the cavity. Such polariton lattices can find application in physical
computing architectures.
REFERENCES
[1] T. Jacqmin et al. “Direct Observation of Dirac Cones and a Flatband in a Honeycomb Lattice for Polaritons,” Phys. Rev. Lett.
112, 116402 (2014)
[2] Benson, Christopher R., et al. "Plug-and-play optical materials from fluorescent dyes and macrocycles." Chem 6.8 (2020).
*This work was supported by National Science Foundation, United States through grant #OMA-1936351. Theauthors acknowledge the use of the nanofabrication and imaging facility at ASRC, CUNY.
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