Propagation of a localized wavepacket in a metamaterial with a negative index of refraction |
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Authors: | V V Grigor’ev V V Kabanov |
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Institution: | (1) B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68 Nezavisimosti Ave., Minsk, 220072, Belarus |
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Abstract: | Propagation properties of electromagnetic waves in a medium with a negative index of refraction are investigated. A model
of a physical signal that combines simultaneously qualities of both a spatially-localized beam and a wavepacket was used as
the incident wave. Such a choice was necessary because of the strong frequency dispersion of metamaterials in the spectral
region with a negative index of refraction. An approximate analytical solution was derived that describes the propagation
dynamics of such a signal through a slab made of material showing simultaneously a negative dielectric permittivity and magnetic
permeability.
Presented at the XIIIth International Conference “Physics of Pulse Discharges in Condensed Media,” August 21–25, 2007, Nikolaev,
Ukraine.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 75, No. 2, pp. 187–193, March–April, 2008. |
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Keywords: | negative index of refraction metamaterial localized wavepacket frequency dispersion |
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