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Phase Stochastic Resonance in a Forced Nanoelectromechanical Membrane
Avishek Chowdhury1, Sylvain Barbay1, Marcel G Clerc2
1Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, C2N Marcoussis, 91460 Marcoussis, France.
Physical Review Letters
|December 30, 2017
Summary
We demonstrate phase stochastic resonance in nanoelectromechanical systems. Adding phase noise enhances weak phase modulated signals, showing potential for nanomechanical oscillator applications.
Area of Science:
- Physics
- Nanoscience
Background:
- Stochastic resonance is typically observed in one-dimensional, amplitude-modulated, bistable systems.
- Its emergence in bidimensional systems, particularly involving phase modulation, is less explored.
Purpose of the Study:
- To experimentally demonstrate phase stochastic resonance in a forced nanoelectromechanical membrane.
- To investigate the role of phase noise in enhancing weak phase-modulated signals.
- To explore potential applications in nanomechanical oscillators.
Main Methods:
- Utilizing a forced nanoelectromechanical membrane system.
- Applying phase noise to a bidimensional response.
- Employing a general forced Duffing oscillator model for theoretical analysis.
Main Results:
- Experimental evidence of phase stochastic resonance in a bidimensional system.
- Demonstration that added phase noise enhances a weak phase-modulated signal.
- Theoretical and experimental confirmation that phase noise acts multiplicatively.
Conclusions:
- Phase stochastic resonance can emerge in bidimensional nanoelectromechanical systems.
- Phase noise plays a crucial role, acting multiplicatively and enabling signal enhancement.
- Potential applications include phase noise metrology and coherent signal transmission in nanomechanical oscillators.
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