My research area is Ultrafast Electronics which is a rapidly developing field in which we explore the ultimate speed limits of electronics.
Ultrafast Electronics is a rapidly developing field in which we explore the ultimate speed limits of electronic components and systems. This field engages a wide range of disciplines and requiris expertise in RF circuit layout, condensed matter physics, superconductivity, quantum properties of matter and materials science. In order to evaluate the performance of ultrafast electronic systems we have to develop new methods for analysing electromagnetic signals. Much of the work in the group to date has centred on the development of new techniques with which to investigate circuit performance at >100GHz speeds where conventional circuit analysis techniques are impossible to implement. We have developed methods for current and voltage sampling in superconducting circuits, and in 2004 a new instrument - the ultrafast STM (funded by the Royal Society) which enables probing of nanoscale electronic components with sub picosecond time resolution.

Metamaterial Devices

Over the last 8 years a gradual increase in interest in the applications of metamaterials has spawned a new research interest here in the development of metamaterial devices for a variety of high frequency applications including NMR microscopy, Ultra High Q RF filters and Ground penetrating Radar.  In particular I'm very interested in the development of Magneto-inductive wave structures as data connectors and power distribution networks. For more information on this please see the link along with some of our publications.

Communications

In addition to our work on electronics we are also very active in the allied area of ultrawideband (UWB) communications and electromagnetics with current projects investigating the propagation of UWB signals in a variety of environments. We have a strong interest in the imaging possibilities presented by UWB signals and systems, particularly from the high contrast nature of their interaction with living tissue which has spurred a new research area in UWB medical imaging.
I am also active in low frequency electromagnetics with projects in deep ocean marine surveying and pipeline detection and Ultra-wideband communications.