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Chip-scale cavity optomechanics in lithium niobate
Wei C Jiang1, Qiang Lin1,2
1Institute of Optics, University of Rochester, Rochester, NY 14627, USA.
Scientific Reports
|November 15, 2016
Summary
We created a lithium niobate optomechanical system with high performance at room temperature. This breakthrough enables efficient optomechanical oscillation for advanced sensing and quantum applications.
Area of Science:
- Optomechanics
- Materials Science
- Photonics
Background:
- Cavity optomechanical systems are crucial for studying light-matter interactions.
- Lithium niobate is a promising material for optomechanical devices due to its excellent properties.
Purpose of the Study:
- To develop a chip-scale cavity optomechanical system using single-crystal lithium niobate.
- To investigate the optomechanical coupling and oscillation capabilities of the device.
Main Methods:
- Fabrication of a cavity optomechanical system in lithium niobate.
- Characterization of optical quality factors and frequency-quality product.
- Excitation and analysis of coherent regenerative optomechanical oscillation.
Main Results:
- Achieved high optical quality factors and a frequency-quality product of 3.6 × 10^12 Hz at room temperature and atmosphere.
- Successfully excited coherent regenerative optomechanical oscillation at 375 MHz with a low threshold power of 174 μW in air.
- Demonstrated strong optomechanical coupling due to excellent material and device properties.
Conclusions:
- The developed lithium niobate optomechanical device exhibits superior performance.
- The system enables efficient optomechanical oscillation, paving the way for advanced applications.
- This work highlights the potential for electro-optic-mechanical hybrid systems in sensing, metrology, and quantum physics.
