Optomechanically induced optical responses with non-rotating wave approximation

TL;DR

This paper investigates how including the non-rotating wave approximation (NRWA) in optomechanical systems enables ultra-slow light and novel transmission phenomena, with potential applications in optical network control.

Contribution

It introduces the consideration of NRWA effects in optomechanical systems, revealing new slow light regimes and transmission phenomena not addressed in prior work.

Findings

Ultraslow light achievable at optomechanically induced transparency window

Upper bound of time delay equals mechanical ringdown time, lasting minutes

Discovery of perfect transmission and absorption phenomena with NRWA

Abstract

Slow light propagation is an important phenomenon in quantum optics. Here, we theoretically study the properties of slow light in a simple optomechanical system considering an effect of non-rotating wave approximation (NRWA) that was ignored in previous related works. With the NRWA effect, the ultraslow light can be easily achieved at the window of optomechanically induced transparency, especially in unresolved sideband regime. From the theoretical results, we find the upper bound of the time delay is exactly the mechanical ringdown time which can last for \textit{several minutes} (mHz linewidth) in recent experiments. Additionally, the interesting phenomena of the perfect optomechanically induced transmission and absorption are studied in the system with the NRWA effect. We believe the results can be used to control optical transmission in modern optical networks.