Molecular optomechanically-induced transparency

TL;DR

This paper demonstrates that molecular cavity optomechanics can achieve optomechanically induced transparency and control of optical signals even with low optical quality factors, enabling new quantum information applications.

Contribution

It introduces a molecular COM system that exhibits transparency and signal control despite low optical quality factors, unlike traditional systems.

Findings

Transparency window appears at low optical quality factors.

Optomechanically induced transparency can be controlled via probe port configuration.

Optical signals can be slowed or advanced in the molecular COM system.

Abstract

Molecular cavity optomechanics (COM), characterized by remarkably efficient optomechanical coupling enabled by a highly localized light field and ultra-small effective mode volume, holds significant promise for advancing applications in quantum science and technology. Here, we study optomechanically induced transparency and the associated group delay in a hybrid molecular COM system. We find that even with an extremely low optical quality factor, an obvious transparency window can appear, which is otherwise unattainable in a conventional COM system. Furthermore, by varying the ports of the probe light, the optomechanically induced transparency or absorption can be achieved, along with corresponding slowing or advancing of optical signals. These results indicate that our scheme provides a new method for adjusting the storage and retrieval of optical signals in such a molecular COM device.