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Updated: Sep 20, 2025
09:10
Fabrication and Testing of Microfluidic Optomechanical Oscillators
Published on: May 29, 2014
12.3K
Optomechanical crystal with bound states in the continuum
Shengyan Liu1,2, Hao Tong1,2, Kejie Fang3,4
1Holonyak Micro and Nanotechnology Laboratory and Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
Nature Communications
|June 8, 2022
Summary
Researchers developed novel optomechanical crystals using mechanical bound states in the continuum (BICs). These systems achieve strong photon-phonon interactions for advanced sensing and quantum transduction applications.
Area of Science:
- Physics
- Nanotechnology
- Quantum Mechanics
Background:
- Chipscale micro- and nano-optomechanical systems leverage radiation pressure for sensing and quantum physics exploration.
- Optomechanical crystals are key platforms for controlling optical photons and mechanical phonons with strong coupling.
Purpose of the Study:
- To demonstrate a new class of optomechanical crystals in 2D slab structures.
- To utilize mechanical bound states in the continuum (BICs) for enhanced optomechanical coupling.
Main Methods:
- Fabrication of two-dimensional slab-on-substrate optomechanical crystal structures.
- Engineering symmetry-induced mechanical bound states in the continuum (BICs) at 8 GHz.
- Characterization of optomechanical coupling strengths.
Main Results:
- Demonstrated emergence of mechanical BICs in the optomechanical crystals.
- Achieved significant optomechanical coupling strengths (g/2π ≈ 2.5 MHz per unit cell).
- Coupling strengths are comparable to those in low-dimensional optomechanical systems.
Conclusions:
- This work introduces a new platform for exploring photon-phonon interactions beyond suspended microcavities.
- The developed optomechanical crystals hold potential for novel applications in phonon sensing and quantum transduction.
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