Franck Levassort
Présentation
Franck Levassort was born near Paris, France. He received the bachelor’s degree in applied physics and the DEA (M.Sc.) degree in physical acoustics from University Paris 7-Denis Diderot, Paris, in 1990 and 1991, respectively, and the Ph.D. degree in ultrasound from the University of Tours, Tours, France, in 1996. From 1997 to 2013, he was an Assistant Professor and since 2014, he has been a Full Professor of Electrical Engineering with the Institute of Technology, University of Tours, Blois, France. Since 2024, he has been Director of GREMAN, Tours, a laboratory of more than 120 in the field of materials, microelectronics, acoustics, and nanotechnology. His current research interests include design, modeling, and characterization of piezoelectric composite materials and structures, as well as transducers for imaging applications.
Publications
Publications
Formation de Faisceaux Adaptée à une Sonde Bimodale pour la Sonoporation Guidée par UltrasonsCFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France |
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Structural and Microstructural Defects in Mechanically Deformed Lead-free FerroelectricsMicroscopy and Microanalysis, Jul 2024, Cleveland - Ohio, United States. ⟨10.1093/mam/ozae044.564⟩ |
Miniaturized 6 MHz phased-array ultrasound probe based on lead-free doped BaTiO3 piezoceramics2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS), Sep 2024, Taipei, Taiwan. pp.1-4, ⟨10.1109/UFFC-JS60046.2024.10793579⟩ |
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Lead-Free Piezoelectric Transducers for Resonant ApplicationsIEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium, Sep 2024, Taipei, Taiwan |
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Metal Composite Backing with High Acoustic Attenuation and Impedance for P(VDF-TrFE)-based Transducer2023 IEEE International Ultrasonics Symposium (IUS), Sep 2023, Montreal, Canada. pp.1-4, ⟨10.1109/IUS51837.2023.10306493⟩ |
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Performance Comparison Between Single Layer and Several Configurations of Bilayer P(VDF-TrFE) Transducers in Pulse-Echo Measurements2022 IEEE International Ultrasonics Symposium (IUS), Oct 2022, Venice, Italy. pp.1-4, ⟨10.1109/IUS54386.2022.9958503⟩ |
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Implémentation d'un circuit électromécanique d'une cellule pMUT vibrant dans l'air16ème Congrès Français d'Acoustique, CFA2022, Société Française d'Acoustique; Laboratoire de Mécanique et d'Acoustique, Apr 2022, Marseille, France |
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Comparaison théorique des performances de transducteurs mono-élément haute fréquence (50MHz) en utilisant différentes techniques de focalisation16ème Congrès Français d'Acoustique, CFA2022, Société Française d'Acoustique; Laboratoire de Mécanique et d'Acoustique, Apr 2022, Marseille, France |
Sonde Hybride Bi-Fréquence -Émission cMUT/Réception P(VDF- TrFE)- pour l’Imagerie Harmonique16ème Congrès Français d'Acoustique, CFA2022, Société Française d'Acoustique; Laboratoire de Mécanique et d'Acoustique, Apr 2022, Marseille, France |
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Properties comparison of three HF (50 MHz) single-element transducer radiation patterns with different focusing principles2020 IEEE International Ultrasonics Symposium (IUS), Sep 2020, Las Vegas, France. pp.1-4, ⟨10.1109/IUS46767.2020.9251529⟩ |
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Characterization of 1-3 Piezocomposite Using Lamb Waves PropagationForum Acusticum, Dec 2020, Lyon, France. pp.1873-1873, ⟨10.48465/fa.2020.0745⟩ |
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[Invited] Texturation of lead-free BaTiO<sub>3</sub> based piezoelectric ceramics95th Deutsche Keramische Gesellschaft Annual Meeting, CERAMICS 2020, Nov 2020, Jülich, Germany |
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Texturation of lead-free BaTiO<sub>3</sub> based piezoelectric ceramics16th Conference of the European Ceramic Society - ECerS XVI, Jun 2019, Torino, Italy |
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Numerical and experimental investigations of piezoelectric energy harvestersElectroceramics for End users X Conference (PIEZO2019), Jan 2019, Spindleruv Mlyn, Czech Republic |
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Electroelastic modulus of 1-3 piezocomposite using Lamb waves propagationIEEE International Ultrasonics Symposium, IUS 2019, Oct 2019, Glasgow, United Kingdom |
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Texturation of lead-free BaTiO3 based piezoelectric ceramicsPIEZO 2019, Jan 2019, Splinderun Mlyn, Czech Republic |
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Texturation of lead-free BaTiO3 based piezoelectric ceramics16th Conference of the European Ceramic Society - ECerS XVI, Jun 2019, Torino, Italy |
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Texturation de céramiques sans plomb à base de BaTiO3Journées annuelles 2018 du GFC, Mar 2018, Bordeaux, France |
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Lead-Free Sodium Potassium Niobate Based Piezoelectric Thick Film Bimorph Structure for Energy Harvesting2018 IEEE International Ultrasonics Symposium (IUS), Oct 2018, Kobe, France. pp.1-4, ⟨10.1109/ULTSYM.2018.8579667⟩ |
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Texturation de céramiques piézoélectriques sans plomb à base de BaTiO3Matériaux 2018, Nov 2018, Strasbourg, France |
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Theoretical electroelastic modili of porous textured piezoceramicsIEEE international Ultrasonics Symposium 2018, Oct 2018, Kobe, Japan. ⟨10.1109/ultsym.2018.8579661⟩ |
Texturation of lead-free BaTiO3 based piezoelectric ceramicsElectroceramics XVI, Jul 2018, Hasselt, Belgium |
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Modeling and Electrical Characterization of a Cantilever Beam for Mechanical Energy Harvesting2018 IEEE International Ultrasonics Symposium (IUS), Oct 2018, Kobe, France. pp.1-4, ⟨10.1109/ULTSYM.2018.8579676⟩ |
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Homogénéisation de céramiques piézoélectriques texturées sans plomb pour la transduction ultrasonoreCFA 2018, Apr 2018, Le Havre, France |
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La texturation des céramiques : application aux matériaux piézoélectriques sans plomb2ème Ecole de Printemps : Matériaux, Procédés et Applications, Apr 2017, Nador, Maroc |
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High-frequency acoustic characterization of porous lead zirconate titanate for backing applications2017 IEEE International Ultrasonics Symposium (IUS) , Sep 2017, Washington, United States |
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Texturation of lead-free BaTiO3 based piezoelectric ceramicsPIEZO 2017, Feb 2017, Cercedilla, Spain |
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Porous lead zirconate titanate ceramics with optimized acoustic properties for high-frequency ultrasonic transducer applicationsAcoustical Society of America (ASA) 174th Meeting, 2017, New Orleans, LA, USA, United States. pp.2576, ⟨10.1121/1.5014416⟩ |
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Parametric study of a thin piezoelectric cantilever for energy harvesting applicationsElectroceramics for End-users IX Conference (PIEZO2017), Feb 2017, Cercedilla, Spain |
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Complete Electroelastic Set of Co doped Barium Titanate for Transducer Applications2017 IEEE International Ultrasonics Symposium (IUS), Sep 2017, Washington, DC, United States. ⟨10.1109/ULTSYM.2017.8091772⟩ |
Coupled model for determination of full electroelastic sets of 1-3 piezocomposite with various pillar shapesIEEE International Ultrasonics Symposium (IUS), Sep 2017, Washington, United States. ⟨10.1109/ULTSYM.2017.8091841⟩ |
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Characterization of a thin piezoelectric material before integration into a cantilever-based mechanical energy harvester2016 IEEE International Ultrasonics Symposium (IUS), Sep 2016, Tours, France. ⟨10.1109/ULTSYM.2016.7728652⟩ |
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Texturation of lead-free BaTiO3 based piezoelectric ceramicsElectroceramics XV, SPCTS, Jun 2016, Limoges, France |
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1-3 Piezocomposites Based on Super-Cell Structuring for Transducer Applications2015 IEEE International Ultrasonics Symposium (IUS), Oct 2015, Taipei, Taiwan. ⟨10.1109/ULTSYM.2015.0368⟩ |
Tunable Bragg band gaps in piezocomposite phononic crystals2015 IEEE International Ultrasonics Symposium (IUS), Oct 2015, Taipei, Taiwan. pp.1-4, ⟨10.1109/ULTSYM.2015.0051⟩ |
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Texturation of lead-free BaTiO3-based piezoelectric ceramicsElectroceramics XIV, Jun 2014, Bucarest, Romania |
Domain wall evolutions laws of piezoceramic materials under mechanical loadingIEEE International Symposium on the Applications of Ferroelectrics and Piezoresponse Force Microscopy, May 2014, Penn state, United States. ⟨10.1109/ISAF.2014.6922967⟩ |
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Matériaux piézoélectriques sans plomb pour transducteurs acoustiquesmatériaux 2014, Nov 2014, Montpellier, France |
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Lead-free high-frequency linear-array transducer (30 MHz) for in vivo skin imaging2013 IEEE International Ultrasonics Symposium (IUS), Jul 2013, Prague, Czech Republic. ⟨10.1109/ULTSYM.2013.0202⟩ |
Texturation of lead-free BaTiO3-based piezoelectric ceramicsPIEZO 2013 Electroceramics for end user, Mar 2013, Les Arcs 1800, France |
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Texturation of lead-free BaTiO3 based piezoelectric ceramics2013 Joint UFFC, EFTF and PFM Symposium, Jul 2013, Prague, Czech Republic |
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Electro-elastic moduli and frequency dependence of KN single crystal2012 Joint 21st IEEE ISAF / 11th IEEE ECAPD / IEEE PFM (ISAF/ECAPD/PFM), Jul 2012, Aveiro, Portugal. pp.1-4, ⟨10.1109/ISAF.2012.6297785⟩ |
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Ultrasonic transducers based on curved lead-free piezoelectric thick films for high resolution medical imagingAcoustics 2012, Apr 2012, Nantes, France |
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Electrophoretic deposition (EPD) process for lead zirconate titanate (PZT) thick films fabrication and high frequency medical imagingAcoustics 2012, Apr 2012, Nantes, France |
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Modeling of pseudo-periodic 1-3 piezo-composites for ultrasonic transducersAcoustics 2012, Apr 2012, Nantes, France |
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Influence of 1-3 piezocomposite fabrications on lateral modes2012 IEEE International Ultrasonics Symposium, Oct 2012, Dresden, Germany. ⟨10.1109/ULTSYM.2012.0556⟩ |
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Fabrication and modeling of piezoelectric transducers for High-Frequency medical imaging47th International Conference on Microelectronics, Devices and Materials and the Workshop, Sep 2011, Ajdovščina, Slovenia. pp.33-37 |
Caractérisation et modélisation de transducteurs haute fréquence utilisant les technologies de films épais piézoélectriques10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France |
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Fabrication et caractérisation de composites piézoélectriques de connectivité 1-3 à base de monocristaux pour la transduction ultrasonore10ème Congrés Français d'Acoustique, CFA 10, 2010, France. pp.1-5 |
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Composites 0-3 et 1-3 à base de monocristaux piézoélectrique-polymère pour transducteurs acoustiquesMatériaux 2010, 2010, Nantes, France |
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Fabrication et caractérisation de composites piézoélectriques de connectivité 1-3 à base de monocristaux pour la transduction ultrasonore10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France |
Fabrication and characterization of large area 1-3 piezo-composites based on PMN-PT single crystals for transducer applicationsIEEE International Ultrasonics Symposium, 2009 IEEE IUS, 2009, Italy. pp.1745-1748, ⟨10.1109/ULTSYM.2009.5441989⟩ |
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HIGH-FREQUENCY ULTRASONIC TRANSDUCERS Fabrication, Characterisation, PerformanceElectroceramics for End-users II - Material Technology and Design of Integrated Piezoelectric Devices, Feb 2004, Courmayeur, Italy |
Numerical and experimental study of thinned-bulk piezoelectric harvesters9th National Days on Energy Harvesting and Storage - JNRSE 2019 (9ème Journée Nationale sur la Récuperation et le Stockage d’Energie), May 2019, Blois, France. , 2019, Proceedings of 9th National Days on Energy Harvesting and Storage |
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Optimized self-consistent full database of piezoelectric material: application to KNbO3 single crystalElectroceramics XV, Jun 2016, Limoges, France |