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Technique for reducing surface wave at an air/left‐handed medium (LHM) interface or excitation of the forward wave in an LHM
Author(s) -
Boutayeb Halim,
Wu Ke,
Mahdjoubi Kouroch
Publication year - 2009
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.24036
Subject(s) - left handed , lossless compression , surface wave , resistor , microwave , optics , physics , interface (matter) , excitation , metamaterial , engineering , electrical engineering , computer science , gibbs isotherm , quantum mechanics , data compression , voltage , computer vision , pulmonary surfactant , thermodynamics
In this article, we analyze the illumination by an electromagnetic wave of an air/left‐handed medium (LHM) interface. It is shown that by placing a periodic structure of resistors near the LHM it is possible to suppress or to reduce the surface wave that is present at the interface. For our demonstration, we consider a semi‐infinite lossless left‐handed medium having the same constitutive parameters as those of air but with opposite signs. Numerical results, obtained by using a full‐wave time domain technique, are presented to validate our approach and the proposed scheme. This work can extend the potential applications of left‐handed materials, because it shows that it is possible to use LHM slabs having large width. In addition, this work shows that it is possible to excite the forward wave of an LHM instead of the backward wave. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 280–284, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24036