Restricted equivalence of paired epsilon–negative and mu–negative layers to a negative phase–velocity material (alias left–handed material)
Abstract:The time–harmonic electromagnetic responses of (a) a bilayer made of an epsilon–negative layer and a mu–negative layer, and (b) a single layer of a negative phase–velocity material are compared. Provided all layers are electrically thin, a restricted equivalence between (a) and (b) exists. The restricted equivalence depends on the linear polarization state and the transverse wavenumber. Implications for perfect lenses and parallel–plate waveguides are considered.
Document Type: Research Article
Affiliations: 1: CATMAS — Computational and Theoretical Materials Science Group, Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802–6812, USA 2: Microwave Technology Branch, Electronic Science & Technology Division, Naval Research Laboratory, Washington, DC 20375–5347, USA
Publication date: 2003-11-01