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Synchronization of Optomechanical Nanobeams by Mechanical Interaction
M F Colombano1,2, G Arregui1,2, N E Capuj3,4
1Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
Physical Review Letters
|August 7, 2019
Summary
Researchers achieved synchronized mechanical motion in coupled optomechanical crystal cavities. They demonstrated control over this synchronization, enabling independent oscillations and paving the way for integrated mechanical oscillator networks.
Area of Science:
- Physics
- Quantum Optics
- Nanotechnology
Background:
- Synchronization of coupled oscillators is a widespread natural phenomenon.
- Synchronizing nanoscale mechanical oscillators presents significant challenges.
Purpose of the Study:
- To demonstrate and control the synchronization of coupled optomechanical crystal cavities.
- To investigate the mechanical dynamics of intercoupled cavities with independent optical modes.
Main Methods:
- Utilizing a pair of optomechanical crystal cavities with a mechanical inter-link.
- Employing a numerical model that incorporates reactive coupling.
- Using a heating laser to actuate and temporarily disable synchronization.
Main Results:
- Achieved antiphase mechanical oscillation in the coupled cavities, consistent with theoretical predictions.
- Demonstrated the ability to switch synchronization on and off by thermal actuation.
- Showcased independent oscillation of cavities upon disabling synchronization.
Conclusions:
- The study successfully demonstrates controlled synchronization of nanoscale mechanical oscillators.
- The findings support the development of integrated networks of synchronized mechanical systems.
- This work offers a pathway for scalable optomechanical networks.
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