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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
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Parametrical Optomechanical Oscillations in PhoXonic Whispering Gallery Mode Resonators
Xavier Roselló-Mechó1, Daniele Farnesi2, Gabriele Frigenti2,3,4
1Department of Applied Physics and Electromagnetism-ICMUV, University of Valencia, Burjassot, Spain.
Scientific Reports
|May 11, 2019
Summary
This study analyzes optomechanical oscillations in phoxonic resonators. Researchers observed regenerative oscillations leading to parametric instabilities.
Area of Science:
- Optomechanics
- Acoustic Resonators
- Photonics
Background:
- Phoxonic whispering gallery mode resonators combine optical and acoustic properties.
- Radiation pressure can induce mechanical motion in optical cavities.
Purpose of the Study:
- To experimentally and theoretically analyze optomechanical oscillations in hollow spherical phoxonic resonators.
- To investigate the role of radiation pressure in parametric oscillation instabilities.
Main Methods:
- Experimental analysis of resonator behavior.
- Theoretical modeling of optomechanical interactions.
- Excitation of acoustic eigenmodes through optical means.
Main Results:
- Observed regenerative oscillations of optically excited acoustic eigenmodes.
- Demonstrated parametric oscillation instabilities in the phoxonic cavity.
- Quantified the effects of radiation pressure on resonator dynamics.
Conclusions:
- Parametrical optomechanical oscillations are a key phenomenon in phoxonic resonators.
- Radiation pressure drives regenerative oscillations leading to instabilities.
- Understanding these instabilities is crucial for resonator applications.
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