
Publica
Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Comment on "Superwide-band negative refraction of a symmetrical E-shaped metamaterial with two electromagnetic resonances"
| Physical Review. E 81 (2010), Nr.4, Art. 048601, 2 S. ISSN: 1063-651X ISSN: 1539-3755 |
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| Englisch |
| Zeitschriftenaufsatz |
| Fraunhofer IPM () |
| metamaterial |
Abstract
The metamaterial presented by Yan [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.