title: Transformation optics and subwavelength control of light.
abstract: Our intuitive understanding of light has its foundation in the ray approximation and is intimately connected with our vision. As far as our eyes are concerned, light behaves like a stream of particles. We look inside the wavelength and study the properties of plasmonic structures with dimensions of just a few nanometers, where at a tenth or even a hundredth of the wavelength of visible light the ray picture fails. We review the concept of transformation optics that manipulates electric and magnetic field lines, rather than rays; can provide an equally intuitive understanding of subwavelength phenomena; and at the same time can be an exact description at the level of Maxwell's equations.
authors.affiliation: The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2AZ, UK. j.pendry@imperial.ac.uk
authors.forename: J B
authors.initials: JB
authors.lastname: Pendry
authors.forename: A
authors.initials: A
authors.lastname: Aubry
authors.forename: D R
authors.initials: DR
authors.lastname: Smith
authors.forename: S A
authors.initials: SA
authors.lastname: Maier