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15 papers · 1 filter
Subwavelength pulse focusing and perfect absorption in the Maxwell fisheye
Gautier Lefebvre, Marc Dubois, Younes Achaoui +4
Maxwell's fisheye is a paradigm for an absolute optical instrument with a refractive index deduced from the stereographic projection of a sphere on a plane. We investigate experime…
Observation of polarization singularities and topological textures in sound waves
R. D. Muelas-Hurtado, K. Volke-Sepulveda, J. L. Ealo +4
Polarization singularities and topological polarization structures are generic features of inhomogeneous vector wave fields of any nature. However, their experimental studies mostl…
Polarization singularities and Möbius strips in sound and water-surface waves
K. Y. Bliokh, M. A. Alonso, D. Sugic +3
We show that polarization singularities, generic for any complex vector field but so far mostly studied for electromagnetic fields, appear naturally in inhomogeneous yet monochroma…
Effective model for elastic waves propagating in a substrate supporting a dense array of plates/beams with flexural resonances
Jean-Jacques Marigo, Kim Pham, Agnès Maurel +1
We consider the effect of an array of plates or beams over a semi-infinite elastic ground on the propagation of elastic waves hitting the interface. The plates/beams are slender bo…
Experimental demonstration of spectrally-broadband Huygens sources using low-index spheres
Mohamed Ismail Abdelrahman, Hassan Saleh, Ivan Fernandez-Corbaton +3
Manipulating the excitation of resonant electric and magnetic multipole moments in structured dielectric media has unlocked many sophisticated electromagnetic functionalities. This…
On static chiral Milton-Briane-Willis continuum mechanics
Muamer Kadic, André Diatta, Tobias Frenzel +2
Recent static experiments on twist effects in chiral three-dimensional mechanical metamaterials have been discussed in the context of micropolar Eringen continuum mechanics, which…