Collision-induced spectroscopy and radiative association in microcavities

Area of Science:

• Physical Chemistry
• Quantum Optics
• Materials Science

Background:

• Polariton chemistry utilizes strong light-matter interactions within confined photonic structures.
• Controlling intermolecular interactions and radiative processes is crucial for chemical applications.

Purpose of the Study:

• Investigate collision-induced emission and radiative association in planar microcavities.
• Analyze the impact of variable light-matter coupling strengths on these processes.
• Explore the use of microcavities for controlling molecular dynamics.

Main Methods:

• Employed a classical electrodynamics-molecular dynamics method.
• Simulated collisions in an argon-xenon (Ar-Xe) gas mixture coupled to a confined electromagnetic field.
• Varied light-matter coupling strengths to observe effects.

Main Results:

• Microcavity effects on collision-induced emission spectra were found to be subtle.
• Radiative association showed significant enhancement within the microcavity, even at high coupling strengths.
• Microcavities can alter the statistical distribution of Ar-Xe complex lifetimes.

Conclusions:

• Microcavities offer a pathway to significantly enhance radiative association.
• Findings provide insights into controlling intermolecular interactions and radiative kinetics.
• The study demonstrates potential for designing microcavities to tune molecular behavior.