Molecular Chemistry in Cavity Strong Coupling.

Area of Science:

• Optics and Photonics
• Physical Chemistry
• Materials Science

Background:

• Strong light-matter interactions yield polaritonic states, previously limited to inorganic materials at cryogenic temperatures.
• Research on polaritons was primarily confined to physicists studying inorganic materials requiring specialized optical cavities and low temperatures.

Purpose of the Study:

• To review the history and recent surge in interest in applying polaritonic states to molecular properties and processes.
• To explore the potential of polaritonic states as a tool for controlling molecular chemistry.

Main Methods:

• Utilizing the collective oscillator strength of organic molecules, aggregates, and materials.
• Achieving strong coupling with cavity vacuum fields at room temperature.
• Employing rapidly fabricated, highly lossy metallic optical cavities.

Main Results:

• Polaritonic states can be achieved at room temperature using organic materials in metallic optical cavities.
• Strong coupling is attainable even with imperfect, lossy cavities due to high oscillator strength.
• This accessibility broadens the study of polaritons beyond physics to chemistry and materials science.

Conclusions:

• Polaritonic states are now accessible to chemists and materials scientists, offering a new paradigm for manipulating molecular processes.
• The coherent phenomena associated with polaritons are relevant to the molecular and material energy landscape.
• This field has accelerated, suggesting significant future impact on controlling chemical reactions and material properties.