Martin Cryan, Professor of Applied Electromagnetics and Photonics, will be describing at WEB Workhop I the recent work done at Bristol in the field of nanoantennas and how these are used to control and enhance the emission of light.
Fabrizio Scarpa, Professor of Smart Materials and Structures, will talk at WEB Workhop I about the wave propagation in periodic cellular structures with unusual deformation mechanisms, like auxeticity, hierarchical assemblies, hybrid and Kirigami-designed lattices. He will also describe how the wave dispersion properties may be used to effectively design structures for particular acoustic and vibrational signatures.
Adrian Barnes, Reader in Physics, will talk at WEB Workhop I about the application of ultrasonic trapping in both water and air for experimentation and materials processing. Examples including trapping of cells, the formation of micro-structured gels and the levitation of dense materials as a potential route to novel glass formation will be given.
Richard Porter, Senior Lecturer in Applied Mathematics, will give an overview at WEB Workhop I of his interests in trapping and cloaking of water waves by circular islands.
Paul Wilcox, Professor of Dynamics, will briefly explain at WEB Workhop I how Non-Destructive Testing (NDT) ensures the safe operation of structures around us. Ultrasonic waves are an essential tool for NDT because they can propagate deep into solid objects. Consequently, ultrasonic NDT is about solving the inverse problem: what information about the interior of an object can be deduced from exterior measurements. Several examples will be presented, including multi-mode imaging, sub-wavelength defect characterisation and non-linear elasticity mapping.
Bruce Drinkwater, Professor of Ultrasonics, will talk at WEB Workhop I about the challenge of designing ultrasonic manipulation devices that are truly dexterous. These devices can independently control the location and orientation of objects over a very wide range of length scales using acoustic radiation forces. Applications range form contact-less processing of pharmaceuticals to 3D tissue engineering.
Sir Michael Berry, Emeritus Professor of Physics, will be describing at WEB Workhop I the unique and fundamental Bristol physics approach to waves, developed over many years and continuing now. This is based on the singularities that occur at different levels: caustics at the ray level, phase vortices at the scalar wave level, and lines of linear and circular polarization at the vector level.