Richard Craster is Professor of Applied Mathematics at Imperial College. He has research interests across a broad spectrum of fluid mechanics and elasticity (fracture mechanics, diffraction theory, wave phenomena, applied complex analysis, Newtonian thin-layer theories, viscoplasticity, guided elastic waves, and waves in microstructured media) and is involved in their applications in engineering and physics.Dr Sébastien Guenneau is a Reader in Physics at Imperial College and a member of the CNRS-Imperial Abraham de Moivre International Research Laboratory. He previously held some positions as a lecturer in the department of mathematical sciences at Liverpool University and as a CNRS researcher at the Fresnel Institute of Aix-Marseille Université. His research focusses on acoustic, mechanical and thermal metamaterials, with a special emphasis on topological and time-modulated periodic and quasiperiodic media.

• 1 Fundamentals of Acoustic Metamaterials.- 2 Locally Resonant Structures for Low Frequency Surface Acoustic Band Gap Applications.- 3 Band-Gap Properties of Prestressed Structures.- 4 Ultrasound Transmission Through Periodically Perforated Plates.- 5 Novel Ultrasound Imaging Applications.- 6 Subwavelength Focussing in Metamaterials Using Far Field Time Reversal.- 7 Anisotropic Metamaterials for Transformation Acoustics and Imaging.- 8 Transformation Acoustics.- 9 Acoustic Cloaking via Homogenization.- 10 Acoustic Cloaking with Plasmonic Shells.- 11 Cloaking Liquid Surface Waves and Plasmon Polaritons.- 12 Transformation Elastodynamics and Active Exterior Acoustic Cloaking.- 13 Experimental Acoustics and Metasurfaces.- 14 Resonators atop Surfaces.- 15 Elastic Metamaterials.

Richard Craster is Professor of Applied Mathematics at Imperial College. He has research interests across a broad spectrum of fluid mechanics and elasticity (fracture mechanics, diffraction theory, wave phenomena, applied complex analysis, Newtonian thin-layer theories, viscoplasticity, guided elastic waves, and waves in microstructured media) and is involved in their applications in engineering and physics.Dr Sébastien Guenneau is a Reader in Physics at Imperial College and a member of the CNRS-Imperial Abraham de Moivre International Research Laboratory. He previously held some positions as a lecturer in the department of mathematical sciences at Liverpool University and as a CNRS researcher at the Fresnel Institute of Aix-Marseille Université. His research focusses on acoustic, mechanical and thermal metamaterials, with a special emphasis on topological and time-modulated periodic and quasiperiodic media.

• 1 Fundamentals of Acoustic Metamaterials.- 2 Locally Resonant Structures for Low Frequency Surface Acoustic Band Gap Applications.- 3 Band-Gap Properties of Prestressed Structures.- 4 Ultrasound Transmission Through Periodically Perforated Plates.- 5 Novel Ultrasound Imaging Applications.- 6 Subwavelength Focussing in Metamaterials Using Far Field Time Reversal.- 7 Anisotropic Metamaterials for Transformation Acoustics and Imaging.- 8 Transformation Acoustics.- 9 Acoustic Cloaking via Homogenization.- 10 Acoustic Cloaking with Plasmonic Shells.- 11 Cloaking Liquid Surface Waves and Plasmon Polaritons.- 12 Transformation Elastodynamics and Active Exterior Acoustic Cloaking.- 13 Experimental Acoustics and Metasurfaces.- 14 Resonators atop Surfaces.- 15 Elastic Metamaterials.