Wave propagation, refraction, and focusing phenomena in Lorentzian double‐negative materials: A theoretical and numerical study | Zendy

Kärkkäinen M. K. | Zendy; Maslovski S. I. | Zendy

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Wave propagation, refraction, and focusing phenomena in Lorentzian double‐negative materials: A theoretical and numerical study

Author(s) -

Kärkkäinen M. K.,

Maslovski S. I.

Publication year - 2003

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.10807

Subject(s) - slab , negative refraction , discretization , causality (physics) , physics , plane wave , refraction , plane (geometry) , microwave , wave propagation , optics , classical mechanics , computational physics , mathematical analysis , metamaterial , quantum mechanics , mathematics , geometry , geophysics

Electromagnetic effects in double‐negative (DNG) materials are considered from the theoretical and numerical points of view. Special attention is given to the causality aspects. The refracton of a cylindrical wave excited by a line source placed above a plane DNG slab and the wave propagation through the slab are studied. The DNG material response is modelled by the resonant constitutive parameters of the Lorentzian form. A novel technique for discretization of the constitutive equations is proposed. The negative refraction and slab focusing phenomena are clearly seen from the simulations. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 4–7, 2003; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/mop.10807

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