| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 3, 2008
|
|
|---|---|---|
| Article Number | 08032 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.2971/jeos.2008.08032 | |
| Published online | 22 September 2008 | |
Regular papers
Leaky modes of a left-handed slab
1
LASMEA, UMR CNRS 6602, Université Blaise Pascal, 24 avenue des Landais, 63177 Aubière, France
2
GES, UMR CNRS 5650, Université de Montpellier II, Bat. 21, CC074, Place E. Bataillon, 34095 Montpellier Cedex 05, France
* antoine.moreau@univ-bpclermont.fr
Received:
4
August
2008
Using complex plane analysis we show that left-handed slab may support either leaky slab waves, which are backward because of negative refraction, or leaky surface waves, which are backward or forward depending on the propagation direction of the surface wave itself. Moreover, there is a general connection between the reflection coefficient of the left-handed slab and the one of the corresponding right-handed slab (with opposite permittivity and permeability) so that leaky slab modes are excited for the same angle of incidence of the impinging beam for both structures. Many negative giant lateral shifts can be explained by the excitation of these leaky modes.
Key words: left-handed materials / leaky modes / complex plane analysis
© The Author(s) 2008. All rights reserved.
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