We demonstrate that a family of metamaterials, with a designed complex permittivity and permeability such that their index of refraction is real, have anomalous scattering features as opposed to their lossless passive counterparts with the same index of refraction.
A. Basiri, I. Vitebskiy, and T. Kottos, "Light scattering in pseudo-passive media with uniformly balanced gain and loss," Proc. SPIE 9546, Active Photonic Materials VII, 95461H (Presented at SPIE Nanoscience + Engineering: August 12, 2015; Published: 31 August 2015); https://doi.org/10.1117/12.2190218.
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