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Neolithic stone settlements as locally resonant metasurfaces
Stéphane Brûlé, Bogdan Ungureanu, Stefan Enoch +1
We study the dynamic surface response of neolithic stone settlements obtained with seismic ambient noise techniques near the city of Carnac in French Brittany. Surprisingly, we fin…
On the possibility of seismic rogue waves in very soft soils
Stephane Brule, Stefan Enoch, Sebastien Guenneau
Liquid wave studies have shown that under certain constructive interference conditions, an abnormal size wave could be generated at a specific point. This type of wave, described l…
The role of seismic metamaterials on soil dynamics
Stephane Brule, Sebastien Guenneau
Some properties of electromagnetic metamaterials have been translated, using some wave analogies, to surface seismic wave control in sedimentary soils structured at the meter scale…
Role of nanophotonics in the birth of seismic megastructures
Stéphane Brûlé, Stefan Enoch, Sébastien Guenneau
The discovery of photonic crystals thirty years ago, in conjunction with research advances in plasmonics and metamaterials, has inspired the concept of decameter scale metasurfaces…
Experimental evidence of auxetic features in seismic metamaterials: Ellipticity of seismic Rayleigh waves for subsurface architectured ground with holes
Stephane Brule, Stefan Enoch, Sebastien Guenneau
Structured soils with regular meshes of metric size holes implemented in first ten meters of the ground have been theoretically and experimentally tested under seismic disturbance…
Conversion of Love waves in a forest of trees
Agnes Maurel, Jean-Jacques Marigo, Sebastien Guenneau
We inspect the propagation of shear polarized surface waves akin to Love waves through a forest of trees of same height atop a guiding layer on a soil substrate. We discover that t…