This service is in BETA
Visit old events site
Event image
John Pendry talk DIT

Clock icon
16:00 – 17:00 12 Mar 2014
Location icon
Ground floor lecture theatre KE G-007
School of Physics
Dublin Institute of Technology
Kevin Street
Dublin 8

Electromagnetism encompasses much of modern technology. Its influence rests on our ability to deploy materials that can control the component electric and magnetic fields. A new class of materials has created some extraordinary possibilities such as a negative refractive index, and lenses whose resolution is limited only by the precision with which we can manufacture them. Cloaks have been designed and built that hide objects within them, but remain completely invisible to external observers. The new materials, named metamaterials, have properties determined as much by their internal physical structure as by their chemical composition and the radical new properties to which they give access promise to transform our ability to control much of the electromagnetic spectrum.

Biography

John Pendry is a condensed matter theorist. He has worked at the Blackett Laboratory, Imperial College London, since 1981. He began his career in the Cavendish Laboratory, Cambridge, followed by six years at the Daresbury Laboratory where he headed the theoretical group. He has worked extensively on electronic and structural properties of surfaces developing the theory of low energy diffraction and of electronic surface states. Another interest is transport in disordered systems where he produced a complete theory of the statistics of transport in one dimensional systems.

In 1992 he turned his attention to photonic materials and developed some of the first computer codes capable of handling these novel materials. This interest led to his present research, the subject of his lecture, which concerns the remarkable electromagnetic properties of materials where the normal response to electromagnetic fields is reversed leading to negative values for the refractive index. This innocent description hides a wealth of fascinating complications. In collaboration with scientists at The Marconi Company he designed a series of ‘metamaterials’ whose properties owed more to their micro-structure than to the constituent materials. These made accessible completely novel materials with properties not found in nature.

The simplicity of the new concepts together with their radical consequences have caught the imagination of the world’s media generating much positive publicity for science in general.

http://www.theguardian.com/science/blog/audio/2008/oct/06/science.weekly.podcast
http://www.iop.org/news/13/oct/page_61677.html
http://www.newscientist.com/article/mg22029485.900-the-great-ideas-hiding-under-the-invisibility-cloak.html#.Us-_Oiglad4

Event type: Lecture/Talk
Organised by: Institute of Physics in Ireland
Contact details: Dr Fran Pedreschi
fran.pedreschi@dit.ie

Invite friends
Link copied!
Location icon
Ground floor lecture theatre KE G-007
School of Physics
Dublin Institute of Technology
Kevin Street
Dublin 8
Clock icon
16:00 – 17:00 12 Mar 2014
Tag icon

Invite friends
Link copied!