Deep subwavelength beam propagation in extremely loss-anisotropic metamaterials

Abstract

Metal-dielectric multilayer metamaterials with extreme loss-anisotropy, in which the longitudinal component of the permittivity tensor has ultra-large imaginary part, are proposed and designed. Diffraction-free deep subwavelength beam propagation and manipulation, due to the nearly flat iso-frequency contour (IFC), 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 period, when the nonlocal effect is considered.

10 pages, 3 figures

References in corpus (5)

• Ultra-broadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab
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• Non-local effects in effective medium response of nano-layered meta-materials
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Cited by in corpus (3)

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