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Vibration damping platform for cavity quantum-electrodynamics experiments
N Sauerwein1, T Cantat-Moltrecht1, I T Grigoras1
1Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
The Review of Scientific Instruments
|April 2, 2022
Summary
We developed a novel composite mechanical platform that significantly reduces vibrations for cavity quantum-electrodynamics experiments. This platform passively damps vibrations up to 100 kHz, improving experimental stability.
Area of Science:
- Quantum Physics
- Experimental Physics
- Mechanical Engineering
Background:
- Cavity quantum-electrodynamics (cQED) experiments require exceptional mechanical stability.
- Vibrations from actuators can disrupt optical alignment and cavity length, degrading experimental performance.
- Existing platforms often struggle to suppress vibrations effectively across a wide frequency range.
Purpose of the Study:
- To design and demonstrate a mechanical platform with superior vibration damping for cQED.
- To passively suppress mechanical resonances impacting cavity length stability.
- To provide a versatile platform compatible with ultra-high vacuum and demanding experimental setups.
Main Methods:
- A composite design integrating a soft, vibration-damping core with a rigid shell for optical alignment.
- Passive vibration damping of piezoelectric actuator-induced noise.
- Characterization of mechanical resonance suppression up to 100 kHz.
Main Results:
- The composite platform effectively suppresses mechanical resonances.
- Vibrations are passively damped up to 100 kHz, significantly enhancing cavity length stability.
- The platform maintains optical alignment crucial for cQED.
Conclusions:
- The developed mechanical platform offers enhanced vibration damping for cQED.
- Its design is suitable for applications requiring long cavities and optical access.
- The platform provides a stable environment for sensitive quantum experiments.
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