Phase-Sensitive Enhanced Absorption, Transmission and Slow Light in a Cross-cavity Magnomechanical System

TL;DR

This paper theoretically investigates how phase and intensity control of probe fields in a cross-cavity magnomechanical system can enhance transparency, absorption, and slow or fast light effects, with implications for signal modulation and quantum sensing.

Contribution

It introduces a novel phase-sensitive scheme to manipulate transparency and group delay in a magnomechanical system, enabling control over light propagation speed.

Findings

Relative phase significantly affects absorption and transmission spectra.

Tuning phase and amplitude can switch between subluminal and superluminal light.

The approach offers practical control for microwave signal modulation.

Abstract

We theoretically propose a scheme to explore the magnetically and magnomechanically induced transparency phenomena in a cross-cavity magnomechanical system, focusing on the role of relative phase and the intensity of the two probing fields in enhancing the absorption and transmission spectra and manipulating the group delay of the transmitted light. Interestingly, the relative phase of the two probe fields could have overwhelming effects on both the absorption spectrum and the group delay of the output field. Tuning the relative phase and amplitude of the probe fields can suppress or enhance the absorption and transmission spectra. The combined effect of the magnon-photon and magnon-phonon couplings, along with relative phase modulations, helps to switch the probe field's behavior from subluminal to superluminal in the current system. The current study offers a straightforward and practical approach, demonstrating the capability to employ the relative phase for the modulation of microwave signals within the cavity magnomechanical system, providing insights for the design of information transduction and quantum sensing.