2005/02/24 by P. Vodo, P. V. Parimi, W. T. Lu +1 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Metamaterials and Metasurfaces Applications #Plasmonic and Surface Plasmon Research #cond-mat.other
paper · pdf · doi:10.1063/1.1927712
published as APPLIED PHYSICS LETTERS 86, 201108 (2005)
arxiv created 2005/02/24 · openalex publication_date 2005/05/09 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We demonstrate focusing of a plane microwave by a planoconcave lens fabricated from a photonic crystal having a negative refractive index and left-handed electromagnetic properties. An inverse experiment, in which a plane wave is produced from a source placed at the focal point of the lens, is also reported. A frequency-dependent negative refractive index, n(ω)<0 is obtained for the lens from the experimental data which match well with that determined from band structure calculations.