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Julio Andrés Iglesias Martínez receives the Best Student Award at IEEE Ultrasonic Symposium
His work consists in achieving three-dimensional phononic crystals at the micro-scale with record band-gap width.
The study of periodic artificial structures such as phononic crystals opens up the possibility for engineering effective mechanical and acoustical properties, as well as introducing bandgaps. Ultrasonics offers a wide range of potential applications, such as imaging techniques at frequencies from 1 to 15 MHz, typically. Thanks to additive manufacturing, the fabrication of complex structures such as 3D phononic crystals are now made possible. However, the limited resolution of conventional 3D printers, of the order of a few tens of micrometers, limits their working frequencies well below 1 MHz. That is a reason why three-dimensional phononic crystals operating at frequencies above 1 MHz remain elusive. In this work, we designed, fabricated, and characterized a 3D phononic crystal that has a wide band gap for frequencies extending from 0.6 MHz to 7.5 MHz, which sets a record in the field. The crystal samples are fabricated at the microscale using two-photon lithography, thanks to the facilities of the MIMENTO nanofabrication center of Institute FEMTO-ST.
REFERENCES
[2] J.A. Iglesias Martínez, J. Moughames, G. Ulliac, M. Kadic and V. Laude, Presentation at the IEEE International Ultrasonic Symposium, Best Student Award in the category Physical Acoustics (September 2021).
[1] J.A. Iglesias Martínez, J. Moughames, G. Ulliac, M. Kadic and V. Laude, “Three-dimensional phononic crystal with ultra-wide bandgap at megahertz frequencies,” Applied Physics Letters 118 (6), 063507 (2021).
Paper prize at the international conference VPPC 2014
At the International IEEE "Vehicle Power and Propulsion Conference" conference held in Coimbra, Portugal from 27 to 30 October 2014, “Hybrid & Fuel Cell Systems” Research Team of Femto-ST Institute won the Paper Prize for the paper titled “Energy management of an hybrid electrical vehicule in degraded operation”
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A book about flexible robotics co-written by Nicolas Chaillet
The objective of the book "Flexible Robotics: Applications to Multiscale Manipulations" is to provide those interested in the field of flexible robotics with an overview of several scientific and technological advances in the practical field of robotic manipulation.
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Nonlinear Optics and Supercontinuum Symposium
A one day “Nonlinear Optics and Supercontinuum Symposium” will be held on Friday 20 September in the Amphi FEMTO in honour of Professor Chinlon Lin who will be here in Besançon during this time.
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European Time and Frequency Seminar (EFTS)
The European Frequency an Time Seminar (EFTS) will be held from Monday, August 16 to friday, August 30 2013.
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Two ERC Grants for FEMTO-ST Institute in 2011
Prof John DUDLEY & Dr Yanne CHEMBO from the Optics Depmarment of FEMTO-ST Institute (UMR 6174 CNRS-Université de Franche-Comté) have both received a financial Grant from the European Research Council (ERC) to support the top level scientific excellence of their research projects
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Michel planat makes the Insights News of the Journal of Physics A: Mathematical and Theoretical
Michel Planat's Insights news article "Quantum computing with Riemann hypothesis" is now available on the journal's website and can be viewed at http://iopscience.iop.org/1751-8121/labtalk-article/45421. This news article is based on the recent paper published by the Journal of Physics A: Mathematical and Theoretical.
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Summer school in Microrobotics and Self-assembly for hybrid MEMS
The general context of the summer school concerns the micromanipulation and assembly of such complex microsystems. From the state-of-the-art, integration technologies for heterogeneous microsystems are based on Microrobotics or Self-assembly approaches.
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4M conference 2010
Co-organized by FEMTO-ST, 4 M conference will take place in Oyonnax (France) from November 17th to 19th.
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d-MEMS 2010 – Besançon June 28-29th
FEMTO-ST and LIFC organize the 1 st workshop on design, control & software implementation for distributed MEMS
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Vehicular Power Propulsion Conference - Lille 2010
FEMTO-ST co-organize The 2010 IEEE Vehicle Power and Propulsion Conference (VPPC) in Lille
For more informations : http://vppc2010.univ-lille1.fr/
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