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Spatio-temporal wavefront shaping in a microwave cavity
Philipp del Hougne, Fabrice Lemoult, Mathias Fink +1
Controlling waves in complex media has become a major topic of interest, notably through the concepts of time reversal and wavefront shaping. Recently, it was shown that spatial li…
Intensity-only measurement of partially uncontrollable transmission matrix: demonstration with wave-field shaping in a microwave cavity
Philipp del Hougne, Boshra Rajaei, Laurent Daudet +1
Transmission matrices (TMs) have become a powerful and widely used tool to describe and control wave propagation in complex media. In certain scenarios the TM is partially uncontro…
Spatio-Temporal Imaging of Light Transport in Highly Scattering Media under White Light Illumination
Amaury Badon, Dayan Li, Geoffroy Lerosey +3
Imaging the propagation of light in time and space is crucial in optics, notably for the study of complex media. We here demonstrate the passive measurement of time-dependent Green…
Slow waves in locally resonant metamaterials line defect waveguides
Nadège Kaina, Alexandre Causier, Yoan Bourlier +3
In the past decades, many efforts have been devoted to the temporal manipulation of waves, especially focusing on slowing down their propagation. In electromagnetism, from microwav…
Exploiting spatiotemporal degrees of freedom for far field subwavelength focusing using time reversal in fractals
Matthieu Dupré, Fabrice Lemoult, Mathias Fink +1
Materials which possess a high local density of states varying at a subwavelength scale theoretically permit to focus waves onto focal spots much smaller than the free space wavele…