Collision-induced spectroscopy and radiative association in microcavities

Polariton chemistry offers a potential route to controlling molecular processes through strong light–matter interactions in optical cavities. In this work, we present simulations of collision-induced emission and radiative association in argon–xenon (Ar–Xe) mixtures confined within planar microcavities. Using classical electrodynamics–molecular dynamics framework, we model molecular collisions coupled to multimode cavity fields with tunable coupling strengths [1]. Our results show that while microcavity confinement only subtly affects collision-induced emission spectra, it can substantially enhance radiative association rates. Moreover, cavity effects alter the statistical distribution of transient Ar–Xe complex lifetimes. These findings suggest that cavity design can be used to influence intermolecular energy transfer and radiative kinetics, providing insight into how photonic confinement shapes gas-phase interactions. 

References 

[1]. Tuan H. Nguyen, Raphael F. Ribeiro; Collision-induced spectroscopy and radiative association in microcavities. J. Chem. Phys. 21 July 2025; 163 (3): 034114.