21 Mar 2026
Job Information
- Organisation/Company
CNRS- Department
Institut de mécanique et d'ingénierie- Research Field
Engineering
Physics » Acoustics
Engineering » Materials engineering- Researcher Profile
First Stage Researcher (R1)- Application Deadline
10 Apr 2026 - 23:59 (UTC)- Country
France- Type of Contract
Temporary- Job Status
Full-time- Hours Per Week
35- Offer Starting Date
1 Oct 2026- Is the job funded through the EU Research Framework Programme?
Not funded by a EU programme- Is the Job related to staff position within a Research Infrastructure?
No
Offer Description
Laboratory and working environment:
The research group is part of the Physical Acoustics Department at the Institute of Mechanics and Engineering (I2M) in Bordeaux. The work will be supervised in collaboration with Nicolas Bachelard, a CNRS researcher at the Laboratoire Ondes et Matière d'Aquitaine (LOMA).
“Controlled morphing of deformable materials through spatio-temporal control of ultrasonic wave fronts”
“Morphing” is a special effect applied to the transformation of photographic and cinematographic images in order to create animation. In material and system engineering, the controlled programming of material shapes, both liquid and solid, is also at the basis for many innovations such as 3D printing, biological tissue engineering, and robotics. Sound waves, and their associated “radiation pressure,” can apply average mechanical stresses on an interface, and induce a change of its equilibrium position (see figure below). In this research project, we will explore the potential of using such mechanical effects of sound waves, combined with advanced spatio-temporal control of wave fronts, to direct the contactless and real-time deformation of interfaces into complex three-dimensional shapes.
Job description :
The candidate will study the transformation of initially spherical liquid droplets under the effect of radiation stresses, or “radiation pressure,” from ultrasonic waves (MHz) using both theoretical and numerical models. The models will be validated experimentally in order to develop an original strategy for contactless shape-morphing of deformable materials. The concepts of wave pseudo-momentum and spatio-temporal wavefront shaping will be central to the study. The numerical model will be based on the boundary element method (BEM) and semi-analytical approaches developed at I2M. The experimental proof-of-concept will leverage the advanced capabilities of a new fully programmable research ultrasound scanner to prescribe the desired ultrasound sequence based on the latest advances in spatiotemporal wavefront control.
The project will explore concepts form several topical fields such as:
- Acoustics and interfacial fluid mechanics
- Advanced wavefront control in complex environments
- Experimental instrumentation (Python)
- Signal processing and image analysis (Python)
- Oral presentation of scientific results at meetings and international conferences.
Where to apply
- Website
- https://emploi.cnrs.fr/Offres/Doctorant/UMR5295-DIEBAR-002/Default.aspx
Requirements
- Research Field
- Engineering
- Education Level
- PhD or equivalent
- Research Field
- Physics
- Education Level
- PhD or equivalent
- Research Field
- Engineering
- Education Level
- PhD or equivalent
- Languages
- FRENCH
- Level
- Basic
- Research Field
- Engineering
- Years of Research Experience
- None
- Research Field
- Physics » Acoustics
- Years of Research Experience
- None
- Research Field
- Engineering » Materials engineering
- Years of Research Experience
- None
Additional Information
- Website for additional job details
https://emploi.cnrs.fr/Offres/Doctorant/UMR5295-DIEBAR-002/Default.aspx
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- Institut de mécanique et d'ingénierie
- Country
- France
- City
- TALENCE
- Geofield
Contact
- City
TALENCE- Website
http://i2m.u-bordeaux.fr/
STATUS: EXPIRED
- X (formerly Twitter)
More share options- Viadeo
- Gmail
- Blogger
- Qzone
- YahooMail
Similar Positions
-
(Ph D) Impact On Presbycusis Of Repeated Acoustic Trauma, Institut Pasteur, France, about 6 hours ago
Presbycusis, age related hearing loss, is one of the most common chronic disabilities in older adults, affecting roughly one third of people by age 65 and more than half by age 75[1]. The loss of ...