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Seminars
Contact :
Matthieu Labousse
Tel : +33 (0) 1 40 79 45 97
Joshua McGraw
Tel : +33 (0) 1 40 79 59 62
Gulliver seminars take place on Mondays at 11:30 AM in the F304 room, and typically last one hour including questions. The seminars are in English, and the scientific topics are mainly those studied in the laboratory.
Gulliver Seminar, Antonin Eddi (ESPCI)
A laboratory approach of Hydro-elastic waves
Hydro-elastic waves (HEW) appear at very large scale in the marginal ice zone where the ocean is covered by a thin layer of ice. The physics of HEW is dominated by the bending elasticity of the thin sheet covering the liquid, but their propagation is much slower than plate (Lamb) waves thanks to the fluid inertia.
In this seminar, I will describe our experimental approach of HEW. I will first focus on the typically parameter range in which they can be observed at the laboratory scale. In a second step, I will show that HEW open promising possibilities for wave control. In particular, I will present experimental configurations that allow for building an HEW based "optics", revisiting Snell's law, geometrical optics and Fourier optics in an hydrodynamical experiment. Last, I will describe HEW propagation in periodically structured media, revealing the emergence of band gaps and Dirac points.
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Seminars (4)
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Gulliver Seminar : Martin van Hecke (AMOLF, Univ. Leiden, Chaire Paris Science)
Lundi 30 mai 11:30-12:30 - Bibliothèque PCT - F3.04
Pathways and Information in Complex Matter
Collections of two-state hysteretic elements called hysterons describe the intricate pathways, hysteresis loops and memory effects observed in crumpled sheets and amorphous media. Such hysterons also naturally arise in many mechanical metamaterials and are then associated with buckling and snapping. Here we bridge (...) -
Gulliver Seminar : Arezki Boudaoud (Ecole Polytechnique)
Lundi 13 juin 11:30-12:30 - Bibliothèque PCT - F3.04
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Gulliver Seminar : Julia Yeomans (University of Oxford)
Lundi 20 juin 11:30-12:30 - Bibliothèque PCT - F3.04
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Gulliver Seminar : Thomas Machon (University of Bristol)
Lundi 27 juin 11:30-12:30 - Bibliothèque PCT - F3.04
The audience is often heterogeneous - because of the wide range of scientific topics covered in the lab - so planning a talk for a broader audience would be preferred. The seminar is in English, and speakers are thus invited to prepare their slides in English.
The seminar starts at 11:30 AM. The speaker is asked to arrive in the lab at least 15 minutes in advance to set up their computer. The talks last typically 45 minutes, and are followed by a discussion time.