Journal
APPLIED PHYSICS LETTERS
Volume 86, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1879104
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We show that a slab of meta-material (with epsilon=mu-1+i Delta) possesses a vortex-like surface wave with no ability to transport energy, whose nature is completely different from a localized mode or a standing wave. Through computations based on a rigorous time-dependent Green's function approach, we demonstrate that such a mode inevitably generates characteristic image oscillations in two-dimensional focusing with even a monochromatic source, which were observed in many numerical simulations, but such oscillations are weak in, three-dimensional focusing. (c) 2005 American Institute of Physics.
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