AIMAN-FILMS Group
Magneto-Nano-Electronics - Active, MEMS and flexible structures
Ultrasonic thermography - Micro-Fluidics
32 researchers and teacher-researchers
including 11 permanent staff (4 professors, 4 lecturers, 3 CNRS researchers)
The group's research focuses on:
- the study of multiphysical phenomena at the interface of wave phenomena (electromagnetic and acoustic), of magnetism, of active and/or flexible nanostructures, of micro-nano-technologies and of micro-fluidics with the aim of developing innovative applications in the fields of: ultrasound systems (non-destructive testing, imaging/characterization of complex media including in flows, therapy), electronic components or microsystems with enhanced performance or functionality, and micro-fluidics.
Specificity of the approach:
- Study of critical and supercritical static, quasi-static and dynamic phenomena of coupled nonlinear systems (specific behaviors of coupled nonlinear systems at phase transition neighborhoods)
- Development of applications in functional electronics, acoustics and fluidics
4 main directions of work :
- Multistable nanostructures; Ultra-low power components; Towards new information processing paradigms:
- Artificial magnetic and multiferroic nanostructures with spin reorientation transition
- Magneto-electric memoryultra-low power(MELRAM)
. - Memristors and Artificial Synapsesmagneto-electric
- Magneto-Electro-Acousto-Mechanical Micro-Systems
- Critical state materials, bosonic micro-nano-structures and composites; Towards functional electronics and therapeutics:
- Study of Multi-phonon interactions and explosive instabilities of ultrasound in solid media
- Quasi-phonon crystals tunable and reconfigurable
- Magnetic-acoustic phase conjugation (wavefront flipping and giant coherent amplification) and applications to ultrasonic nonlinear imaging and therapy
- Nonlinear ultrasonic imaging and characterization of complex liquid flows by magneto-acoustic phase conjugation: mapping the velocity distribution of a complex liquid flow, simultaneous measurements of flow velocity and concentration of a second phase in the case of two-phase media, characterization of decompressed liquid flows with gaseous micro-nano-bubbles, ultrasonic tomography of complex flows
- Nonlinear imaging and ultrasonic non-destructive testing of defects (using a method combining acoustic time-reversal and nonlinear elastic wave spectroscopy techniques) and contact modeling
- Modeling of multiphysics composite materials and structures (e.g. magneto-elasto-ferroic) - Flexible Electronics/MEMS:
- Micro-sensor and micro-actuator arrays based on ultra-flexible polymer thin films
- Touch interfaces with high integration density
- Ultra-flexible microwave devices mechanically reconfigurable: mechanically reorientable or frequency-tunable 60 GHz antennas, and mechanically adjustable 60 GHz phase shifters - Functional microfluidics, interface dynamics, MEMS for flow controls:
- Acousto-fluidics at small scales: manipulation of drops and fluids by surface acoustic waves in nonlinear regime, acoustic generation by two-phase microflows, statistical methods for prediction of acoustic propagation in bubble media
- Study of Faraday instabilities in microgravity and ultrasonic tomography analysis of instabilities
- Networks of Microactuators and Micro MEMS sensors for controls of aerodynamic flows (aeronautical or automotive disbond controls)