Active Metamaterials

We are experts in the physics of waves interacting with complex materials, and research ways to actively control this interaction.

Publications

• A. Bossart and R. Fleury, “Non-Hermitian time-evolution: from static to parametric instability”, Physical Review A, 2021.
• T. Koutserimpas, H. Lissek and R. Fleury, “Active acoustic resonators with reconfigurable resonance frequency, absorption, and bandwidth“, Physical Review Applied, 2019.
• T. Koutserimpas and R. Fleury, “Nonreciprocal gain in non-Hermitian time-Floquet systems“, Physical Review Letters, 2018.
• E. Rivet, A. Brandstötter, K.G. Makris, H. Lissek, S. Rotter and R. Fleury, “Constant-amplitude sound wave in non-Hermitian disordered media“, Nature Physics, 2018.
• R. Fleury, D. Sounas and A. Alu, “An invisible acoustic sensor based on Parity-Time symmetry“, Nature Communications, 2015.
• R. Fleury, D. Sounas and A. Alu, “Negative refraction and planar focusing based on Parity-Time symmetric metasurfaces“, Physical Review Letters, 2015.