High-power generation and transmission in a left-handed planar waveguide excited by an electric dipole
Optics Express, Vol. 13, Issue 25, pp. 10230-10237 (2005)
http://dx.doi.org/10.1364/OPEX.13.010230
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Abstract
We show that a planar waveguide excited by a three-dimensional linear electric dipole exhibits unusual physical properties if it is filled with two equal-thickness layers, where one layer is air and the other layer is a specialized left-handed material (LHM) with the relative permittivity -1/(1 + δ) + iγε and permeability -(1 + δ) + iγμ (δ, γε and γμ are all small parameters). In such a LHM waveguide, extremely high power densities are generated and transmitted under the excitation of the electric dipole no matter whether the LHM layer is lossless or lossy. We also show that a dominant mode always exists in the waveguide, which is not restricted by the guidance condition and the waveguide geometry. The guidance condition only determines the existence of higher guided modes. Numerical experiments verify the above conclusions.
© 2005 Optical Society of America
OCIS Codes
(230.7370) Optical devices : Waveguides
(260.2110) Physical optics : Electromagnetic optics
ToC Category:
Research Papers
Citation
Qiang Cheng and Tie Jun Cui, "High-power generation and transmission in a left-handed planar waveguide excited by an electric dipole," Opt. Express 13, 10230-10237 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-25-10230
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References
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- A. Grbic and G. V. Eleftheriades, "Overcoming the diffraction limit. with a planar left-handed transmission-line lens," Phys. Rev. Lett. 92, 117403 (2004). [CrossRef] [PubMed]
- Q. Cheng and T. J. Cui, "High power generation and transmission through a left-handed material," Phys. Rev. B, 72, 113112, 2005. [CrossRef]
- W. C. Chew, Waves and Fields in Inhomogenous Media (Van Nostrand Reinhold, New York, 1990).
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