Acoustic manipulation of active spherical carriers: Generation of negative radiation force

This paper examines theoretically a novel mechanism of generating negative (pulling) radiation force for acoustic manipulation of spherical carriers equipped with piezoelectric actuators in its inner surface. In this mechanism, the spherical particle is handled by common plane progressive monochroma...

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Bibliographic Details
Published in:Annals of physics 2016-09, Vol.372, p.182-200
Main Authors: Rajabi, Majid, Mojahed, Alireza
Format: Article
Language:English
Subjects:
Acoustic manipulation
Acoustics
Active radiation force control
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Handling strategy
MONOCHROMATIC RADIATION
Piezoelectric material
PIEZOELECTRICITY
Radiation
SOUND WAVES
SPHERICAL CONFIGURATION
STANDING WAVES
Theoretical physics
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Summary:This paper examines theoretically a novel mechanism of generating negative (pulling) radiation force for acoustic manipulation of spherical carriers equipped with piezoelectric actuators in its inner surface. In this mechanism, the spherical particle is handled by common plane progressive monochromatic acoustic waves instead of zero-/higher- order Bessel beams or standing waves field. The handling strategy is based on applying a spatially uniform harmonic electrical voltage at the piezoelectric actuator with the same frequency of handling acoustic waves, in order to change the radiation force effect from repulsive (away from source) to attractive (toward source). This study may be considered as a start point for development of contact-free precise handling and entrapment technology of active carriers which are essential in many engineering and medicine applications.
ISSN:0003-4916
1096-035X
DOI:10.1016/j.aop.2016.05.003