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Simple and Versatile Platforms for Manipulating Light with Matter: Strong Light-Matter Coupling in Fully

Andrew Strang¹, Victoria Quirós-Cordero², Pascal Grégoire³

¹Department of Physics and Centre for Plastic Electronics, Imperial College London, London, SW7 2AZ, UK.

Advanced Materials (Deerfield Beach, Fla.)

|May 16, 2023

Summary

Researchers developed solution-processed planar microcavities exhibiting strong light-matter coupling. These polymer-based structures show tunable optical modes, enabling applications in various active materials.

Keywords:

exciton‐polaritons perylene diimide solution‐processed microcavities strong light–matter coupling

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Published on: September 27, 2011

Area of Science:

Materials Science
Optics
Polymer Chemistry

Background:

Planar microcavities are crucial for controlling light-matter interactions.
Achieving strong coupling typically requires complex fabrication processes.
Solution-processable materials offer advantages for scalable device manufacturing.

Purpose of the Study:

To present fully solution-processed planar microcavities with strong light-matter coupling.
To demonstrate the controlled fabrication and optical properties of these microcavities.
To explore the tunability of optical modes for diverse applications.

Main Methods:

Fabrication of distributed Bragg reflectors (DBRs) using alternating layers of titanium oxide hydrate/poly(vinyl alcohol) hybrid and fluorinated polymer.
Incorporation of a perylene diimide derivative (b-PDI-1) film at the optical mode antinode.
Characterization of optical properties using reflectance and group delay measurements, supported by classical electrodynamic simulations.

Main Results:

Demonstrated strong light-matter coupling evidenced by anti-crossing in the energy-dispersion relation.
Experimental data agreed with simulations, confirming controllable microcavity fabrication.
Achieved precise manipulation of refractive indices in hybrid layers (1.50 to 2.10).

Conclusions:

Solution-processed planar microcavities with strong light-matter coupling are feasible.
The tunable refractive index of hybrid DBRs allows for a wide spectral range of optical modes.
These microcavities offer a versatile platform for harnessing strong light-matter coupling in solution-processable active materials.