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Vibrational Resonance Amplification in a Thermo-Optic Optomechanical Nanocavity
Guilhem Madiot1, Sylvain Barbay1, Rémy Braive1,2
1Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Saclay, 91120 Palaiseau, France.
Nano Letters
|September 22, 2021
Summary
Weak signals are amplified in nonlinear optical nanocavities using vibrational resonance. This study demonstrates a +16 dB amplification in a thermo-optically bistable resonator, advancing nanophotonic applications.
Area of Science:
- Optics and Photonics
- Nonlinear Dynamics
- Nanotechnology
Background:
- Vibrational resonance amplifies weak low-frequency signals in bistable systems using high-frequency modulation.
- Enhancing weak optical signals in nonlinear optical nanocavities is crucial for low-power nanophotonic applications.
Purpose of the Study:
- To experimentally observe vibrational resonance in a thermo-optically bistable photonic crystal optomechanical resonator.
- To investigate the potential for weak signal enhancement in nanophotonic devices.
Main Methods:
- Utilized a thermo-optically bistable photonic crystal optomechanical resonator.
- Employed a mechanical resonance for characterizing bistability via thermoelastic coupling.
Main Results:
- Achieved experimental observation of vibrational resonance.
- Demonstrated signal amplification up to +16 dB.
- Characterized system bistability through membrane mechanical resonance.
Conclusions:
- Vibrational resonance is effectively demonstrated in integrated nonlinear optical nanocavities.
- The system shows significant potential for weak optical signal amplification in nanophotonics.
- Thermoelastic coupling provides a viable method for characterizing optomechanical bistability.
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