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Schematic geometry of a planar nanolayer-based metamaterial, surrounded by two cladding layers.
(Color online) Transfer matrix method (solid lines) and EMT (dashed lines) calculations of field of [(a) and (b)] and [(c) and (d)] modes for metal (white)-dielectric(yellow) composites with [(a) and (c)] and 20 [(b) and (d)] layers.
(Color online) Effective refractive index of waveguide modes as a function of number of layers in the core region , calculated using transfer matrix method (dots), “conventional” EMT (dashed lines), and the “non-local EMT” derived in this work (solid lines), for waveguide with perfectly conducting [(a) and (b)] and air [(c) and (d)] claddings; [(a) and (c)]; [(b) and (d)]; top panels correspond to ; size of black bars correspond to standard deviation in as determined from our numerical simulations; bottom panels represent composite with .
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