Centre National De La Recherche Scientifique

Université De Lille

Ecole Centrale De Lille

Sorbonne Université

Michaël Aymeric Baudoin

Jean-Louis Pierre Thomas

Olivier Khalil Bou Matar-Lacaze

Antoine Jean-Pierre Riaud

Philippe Brunet

Adrien Bussonniere

Olivier Khalil Nizar Bou Matar-Lacaze

Electroacoustic device having a transducer including a piezoelectric substrate, first and second electrodes of inverse polarity having respective first and second tracks provided on said substrate, the first and second tracks spiraling around a same center (C), the transducer being configured for generating a swirling ultrasonic surface wave in the substrate.

Acoustic tweezers

Method for increasing the ability of at least one droplet to slide over a medium. An ultrasonic surface wave is generated in the medium with a sufficient amplitude to cause the droplet to deform in an inertio-capillary eigen-vibration mode, thus decreasing the attachment of the droplet to the medium, so as to make it easier for the droplet to move under the effect of an external force, the amplitude of the ultrasonic surface wave being insufficient to cause the droplet to deform asymmetrically to the point that it moves in the absence of the external force in the direction of propagation of the ultrasonic surface wave.

Method for increasing the ability of at least one droplet to slide over a medium

Growing community of inventors

Lezennes, France

Michaël Aymeric Baudoin