Phase stochastic resonance in a forced nano-electromechanical membrane

A. Chowdhury (1) , S. Barbay (1) , Marcel G. Clerc (2) , Isabelle Philip (3, 4) , Rémy Braive (1)

1 C2N - Centre de Nanosciences et de Nanotechnologies [Marcoussis]
2 Departamento de Física, Facultad de Ciencias Físicas y Matemáticas Universidad de Chile
3 L2C - Laboratoire Charles Coulomb
4 C2N - Centre de Nanosciences et de Nanotechnologies

Stochastic resonance is a general phenomenon usually observed in one-dimensional, amplitude modulated, bistable systems. We show experimentally the emergence of phase stochastic resonance in the bidimensional response of a forced nanoelectromechanical membrane by evidencing the enhancement of a weak phase modulated signal thanks to the addition of phase noise. Based on a general forced Duffing oscillator model, we demonstrate experimentally and theoretically that phase noise acts multiplicatively, inducing important physical consequences. These results may open interesting prospects for phase noise metrology or coherent signal transmission applications in nanomechanical oscillators. Moreover, our approach, due to its general character, may apply to various systems.

Domaines: Physique Générale [physics.gen-ph]

A. Chowdhury, S. Barbay, Marcel G. Clerc, Isabelle Philip, Rémy Braive. Phase stochastic resonance in a forced nano-electromechanical membrane. Physical Review Letters, 2017, 119, pp.234101. ⟨10.1103/PhysRevLett.119.234101⟩. ⟨hal-01668646⟩