Optical nonreciprocal response and conversion in a Tavis-Cummings coupling optomechanical system

TL;DR

This paper proposes a Tavis-Cummings coupling optomechanical system that enables controllable optical nonreciprocal response and conversion, offering new possibilities for phonon-photon transduction and optomechanical circulators.

Contribution

It introduces a novel scheme combining Tavis-Cummings interaction with optomechanics to achieve tunable nonreciprocal optical responses and conversion phenomena.

Findings

Analytical relationship between phases of mechanical, optical, and dopant modes.

Optimal nonreciprocal response achieved by parameter tuning.

Richer nonreciprocal conversion phenomena compared to conventional systems.

Abstract

We propose a scheme to realize optical nonreciprocal response and conversion in a Tavis-Cummings coupling optomechanical system, where a single cavity mode interacts with the vibrational mode of a flexible membrane with an embedded ensemble of two-level quantum emitters. Due to the introduction of the Tavis-Cummings interaction, we find that the phases between the mechanical mode and the optical mode, as well as between the mechanical mode and the dopant mode, are correlated with each other, and further give the analytical relationship between them. By optimizing the system parameters, especially the relative phase between two paths, the optimal nonreciprocal response can be achieved. Under the frequency domain, we derive the transmission matrix of the system analytically based on the input-output relation and study the influence of the system parameters on the nonreciprocal response of the quantum input signal. Moreover, compared with the conventional optomechanical systems, the Tavis-Cummings coupling optomechanical system exhibits richer nonreciprocal conversion phenomena among the optical mode, mechanical mode, and dopant mode, which provide a new applicable way of achieving the phonon-photon transducer and the optomechanical circulator in future practice.