Deep Subwavelength Beam Propagation in Extremely Loss-Anisotropic Metamaterials
Metal-dielectric multilayer metamaterials with extreme loss-anisotropy, in which the longitudinal component of the permittivity tensor has an ultra-large imaginary part, are proposed and designed. Diffraction-free deep subwavelength beam propagation and manipulation, due to the nearly flat iso-frequency contour, is demonstrated in such loss-anisotropic metamaterials. It is also shown that deep subwavelength beam propagation can be realized in practical multilayer structures with large multilayer periods, when the nonlocal effect is considered. © 2013 IOP Publishing Ltd.
Y. He et al., "Deep Subwavelength Beam Propagation in Extremely Loss-Anisotropic Metamaterials," Journal of Optics (United Kingdom), Institute of Physics - IOP Publishing, Jan 2013.
The definitive version is available at http://dx.doi.org/10.1088/2040-8978/15/5/055105
Mechanical and Aerospace Engineering
Keywords and Phrases
Deep Subwavelength Propagation; Extreme Loss-Anisotropy; Multilayer Metamaterials; Nonlocal Effect
Article - Journal
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