Probing radiation forces acting on acoustic bubbles using digital in-line holography
Abstract
A digital in-line holography technique (DIH) is applied to measure non-invasively the three-dimensional motion of micrometric bubbles in an acoustic field. In addition to the components of the bubble displacements, DIH also allows the measurement of the temporal evolution of the bubble radii. It is shown that the knowledge of these four variables allow assessing the various forces that the bubbles experience. In the absence of the acoustic field, the buoyancy and drag forces are assessed. When the acoustic field is switched on, the primary radiation force acting on a single bubble is quantified. The order of the magnitude of the force, as well as its evolution along the bubble trajectory, are captured. It is demonstrated that the location of pressure nodes and antinodes in the cavity are recovered when compared with numerical simulations of the acoustic pressure field. When two bubbles nucleated in the cavity are investigated, they can attract and coalesce under the action of the secondary radiation force. DIH technique allows the quantification of this attractive force acting between the bubbles. The evolution of the secondary Bjerknes force with the interbubble distance is shown to be consistent with theoretical models.
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BibTeX
@article{mauger2026probing,
title = {{Probing radiation forces acting on acoustic bubbles using digital in-line holography}},
author = {Cyril Mauger and Claude Inserra and Antoine Lotton and Nathalie Grosjean and Alexander Doinikov and Philippe Blanc-Benon and Loïc Méès},
journal = {Ultrasonics Sonochemistry},
year = {2026},
month = sep,
doi = {10.1016/j.ultsonch.2026.107911},
url = {https://hal.science/hal-05748324v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Probing radiation forces acting on acoustic bubbles using digital in-line holography
AU - Cyril Mauger
AU - Claude Inserra
AU - Antoine Lotton
AU - Nathalie Grosjean
AU - Alexander Doinikov
AU - Philippe Blanc-Benon
AU - Loïc Méès
PY - 2026
DA - 2026/09/13
JO - Ultrasonics Sonochemistry
DO - 10.1016/j.ultsonch.2026.107911
UR - https://hal.science/hal-05748324v1
AB - A digital in-line holography technique (DIH) is applied to measure non-invasively the three-dimensional motion of micrometric bubbles in an acoustic field. In addition to the components of the bubble displacements, DIH also allows the measurement of the temporal evolution of the bubble radii. It is shown that the knowledge of these four variables allow assessing the various forces that the bubbles experience. In the absence of the acoustic field, the buoyancy and drag forces are assessed. When the acoustic field is switched on, the primary radiation force acting on a single bubble is quantified. The order of the magnitude of the force, as well as its evolution along the bubble trajectory, are captured. It is demonstrated that the location of pressure nodes and antinodes in the cavity are recovered when compared with numerical simulations of the acoustic pressure field. When two bubbles nucleated in the cavity are investigated, they can attract and coalesce under the action of the secondary radiation force. DIH technique allows the quantification of this attractive force acting between the bubbles. The evolution of the secondary Bjerknes force with the interbubble distance is shown to be consistent with theoretical models.
SN - 1350-4177
ER -