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Brief Overview of Recent Developments on Negative Phase–Velocity Mediums (alias Left–Handed Materials) |
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| Authors: | Akhlesh Lakhtakia Martin W McCall Werner S Weiglhofer |
| Institution: | aCATMAS–Computational & Theoretical Materials Science Group, Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802-6812, USA. bDepartment of Physics, The Blackett Laboratory, Imperial College of Science, Technology and Medicine, Prince Consort Road, London SW7 2BW, UK. cDepartment of Mathematics, University of Glasgow, Glasgow G12 8QW, UK. |
| Abstract: | This brief overview covers a rapidly occurring development in the area of microwave composite materials: isotropic dielectric–magnetic mediums wherein the phase velocity vector and the time–averaged Poynting vector are oppositely directed. Such materials have also been inappropriately designated as left–handed materials. Ramifications for aberration–free lenses, homogenization approaches, and complex mediums are also presented. |
| Keywords: | Left–handed materials Negative phase velocity Negative real permeability Negative real permittivity |
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