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Low Noise Opto-Electro-Mechanical Modulator for RF-to-Optical Transduction in Quantum Communications.
Michele Bonaldi1,2, Antonio Borrielli1,2, Giovanni Di Giuseppe3,4
1Institute of Materials for Electronics and Magnetism, Nanoscience-Trento-FBK Division, 38123 Povo, TN, Italy.
Entropy (Basel, Switzerland)
|July 29, 2023
Summary
We developed an Opto-Electro-Mechanical Modulator (OEMM) for RF-to-optical conversion using a nanomembrane resonator. This device shows potential for quantum transducers and electromagnetic cooling in dilution refrigerators.
Area of Science:
- Opto-electro-mechanical systems
- Nanotechnology
- Quantum transduction
Background:
- RF-to-optical transduction is crucial for advanced communication and sensing.
- Opto-electro-mechanical devices offer a pathway for sensitive signal conversion.
Purpose of the Study:
- To present a novel Opto-Electro-Mechanical Modulator (OEMM) for efficient RF-to-optical transduction.
- To explore the integration of OEMM with Fabry-Perot cavities for electromagnetic cooling.
Main Methods:
- Utilizing an ultra-coherent nanomembrane resonator capacitively coupled to an RF injection circuit.
- Employing a microfabricated read-out to enhance electro-optomechanical interaction.
- Embedding the device in a Fabry-Perot cavity for cooling experiments.
Main Results:
- Achieved an optically measured steady-state frequency shift of 380 Hz with 30 V polarization.
- Demonstrated a Q-factor above 10^6 for the device at room temperature.
- Proposed the use of a superconductive rf-sputtered titanium nitride layer.
Conclusions:
- The developed OEMM shows promise for high-performance RF-to-optical transduction.
- The device configuration is suitable for electromagnetic cooling applications in dilution refrigerators.
- Superconductive titanium nitride layers can enhance quantum transducer efficiency.
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