Optomechanically Induced Birefringence and Optomechanically Induced Faraday Effect.

Area of Science:

• Optomechanics
• Photonics
• Quantum Optics

Background:

• Optomechanical systems couple optical and mechanical degrees of freedom.
• Fabry-Pérot resonators support polarization-degenerate optical modes.
• Control over light polarization is crucial for many optical technologies.

Purpose of the Study:

• To demonstrate an optomechanical platform for arbitrary light polarization control.
• To explore optomechanically induced birefringence and its applications.
• To achieve tunable optical isolation and circulation using optomechanics.

Main Methods:

• Utilizing a Fabry-Pérot resonator to host optomechanical interactions.
• Employing an optical control field to break rotational symmetry and mediate mode conversion.
• Inducing birefringence through mechanical motion and optical driving.

Main Results:

• Demonstrated arbitrary tailoring of light polarization states across the entire Poincaré sphere.
• Achieved reciprocal and nonreciprocal optomechanically induced birefringence.
• Showcased all-optical tunable isolation and circulation as a setup extension.

Conclusions:

• Optomechanical interactions can be leveraged for sophisticated light polarization manipulation.
• The demonstrated platform offers a new paradigm for controlling optical properties.
• This work paves the way for advanced applications in integrated photonics and quantum information.