A negative-phase-velocity condition derived by Depine and Lakhtakia (Microwave Opt Technol Lett 41 (2004) 315-317) for isotropic, homogeneous, passive, dielectric-magnetic materials is inapplicable as a negative-refraction condition for active materials. © 2009 Wiley Periodicals, Inc.
CITATION STYLE
Lakhtakia, A., Mackay, T. G., & Geddes, J. B. (2009). On the inapplicability of a negative-phase-velocity condition as a negative-refraction condition for active materials. Microwave and Optical Technology Letters, 51(5), 1230. https://doi.org/10.1002/mop.24289
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