Comment on “Superwide-band negative refraction of a symmetrical E-shaped metamaterial with two electromagnetic resonances”

Oliver Paul, René Beigang, and Marco Rahm
Phys. Rev. E 81, 048601 – Published 22 April 2010

Abstract

The metamaterial presented by Yan et al. [Phys. Rev. E 77, 056604 (2008)] is claimed to exhibit a superwide band of negative refraction. However, a retrieval procedure of the refractive index including the phase advance of a propagating plane wave shows that the material provides two distinct narrow bands with a negative refractive index instead of a single superwide band and thus the central claim of the paper is incorrect.

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  • Received 16 February 2009

DOI:https://doi.org/10.1103/PhysRevE.81.048601

©2010 American Physical Society

Authors & Affiliations

Oliver Paul1, René Beigang1,2, and Marco Rahm1,2

  • 1Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, Kaiserslautern, Germany
  • 2Fraunhofer Institute for Physical Measurement Techniques IPM, Freiburg, Germany

See Also

Comment on “Superwide-band negative refraction of a symmetrical E-shaped metamaterial with two electromagnetic resonances”

Chao Gu, Zhibing Pei, Shaobo Qu, Jiafu Wang, Hua Ma, and Zhuo Xu
Phys. Rev. E 81, 048602 (2010)

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Original Article

Superwide-band negative refraction of a symmetrical E-shaped metamaterial with two electromagnetic resonances

Changchun Yan, Yiping Cui, Qiong Wang, and Shichuang Zhuo
Phys. Rev. E 77, 056604 (2008)

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Issue

Vol. 81, Iss. 4 — April 2010

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