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Proceedings Paper

Phase stochastic resonance in an nanomechanical photonic crystal membrane with integrated electrical actuation (Conference Presentation)
Author(s): Avishek Chowdhury; Sylvain Barbay; Marcel G. Clerc; Isabelle Robert-Philip; Rémy Braive
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Paper Abstract

Stochastic resonance is a paradoxical phenomenon whereby a weak signal can be amplified by application of noise. Stochastic resonance occurs in a number of nonlinear systems, in neurobiology, mesoscopic physics, photonics, atomic physics, mechanics,... The classical picture of stochastic resonance involves the stochastic synchronisation of the motion of a fictious particle (representing the system's state) in a bistable potential subjected to a weak amplitude harmonic modulation (the input signal) and to amplitude noise. Stochastic amplification of the weak signal is revealed in the spectral amplification at the signal frequency for a non zero input noise strength. We report on the observation of phase stochastic resonance in a nanomechanical, photonic crystal membrane with integrated electrical actuation. The nanomechanical oscillator is forced by a coherent driving signal which results in a bistable behavior. Bistability occurs in a bidimensional phase space since the system has a response in amplitude and in phase. We subject the oscillator to an additional slow phase modulation and to phase noise. We evidence a stochastic resonance phenomenon with amplification of the phase or amplitude response of the system for a non-zero input noise. Moreover, a theoretical analysis reveals that phase noise acts in a multiplicative fashion. This has important consequences on the optimal parameters for stochastic resonance to occur and explains the observed noise-induced detuning in the system. Phase stochastic resonance may have impact on several domains, including signal transmission telecommunication with coherent protocols such as Phase Shifting Keying, or metrology with improved detection.

Paper Details

Date Published: 14 March 2018
Proc. SPIE 10541, Photonic and Phononic Properties of Engineered Nanostructures VIII, 105411T (14 March 2018); doi: 10.1117/12.2287780
Show Author Affiliations
Avishek Chowdhury, Ctr. National de la Recherche Scientifique (France)
Sylvain Barbay, Ctr. de Nanosciences et Nanotechnologies (France)
Marcel G. Clerc, Univ. de Chile (Chile)
Isabelle Robert-Philip, Ctr. de Nanosciences et Nanotechnologies (France)
Rémy Braive, Ctr. de Nanosciences et Nanotechnologies (France)

Published in SPIE Proceedings Vol. 10541:
Photonic and Phononic Properties of Engineered Nanostructures VIII
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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