Four-wave mixing, quantum control, and compensating losses in doped negative-index photonic metamaterials

A K. Popov, Department of Physics and Astronomy, University of Wisconsin–Stevens Point
S A. Myslivets, Institute of Physics of the Russian Academy of Sciences
T F. George, Department of Chemistry and Biochemistry and Department of Physics and Astronomy, Center for Nanoscience, University of Missouri-St. Louis
V. M. Shalaev, Birck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue University

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The possibility of compensating absorption in negative-index metamaterials (NIMs) doped by resonant nonlinear-optical centers is shown. The role of quantum interference and the extraordinary properties of four-wave parametric amplification of counterpropagating electromagnetic waves in NIMs are discussed.