Organic polariton lasing and the weak- to strong-coupling crossover

TL;DR

This paper develops a microscopic model to explore the transition from weak to strong matter-light coupling in organic polariton lasing, revealing the underlying mechanisms and phase diagram.

Contribution

It introduces a non-equilibrium Dicke-Holstein model that incorporates vibrational modes and matter-light interactions, providing new insights into organic polariton lasing.

Findings

Phase diagram of the model in the thermodynamic limit

Mechanism of polariton lasing involving self-tuning

Distinction between dye lasers and organic polariton lasers

Abstract

Following experimental realizations of room temperature polariton lasing with organic molecules, we present a microscopic model that allows us to explore the crossover from weak to strong matter-light coupling. We consider a non-equilibrium Dicke-Holstein model, including both strong coupling to vibrational modes and strong matter-light coupling, providing the phase diagram of this model in the thermodynamic limit. We discuss the mechanism of polariton lasing, uncovering a process of self-tuning, and identify the relation and distinction between regular dye lasers and organic polariton lasers.