## Abstract

Homogeneous, isotropic mediums characterized by relative permittivity scalars ∈ = ∈_{R} + i∈_{I} (∈R, ∈ _{I} ∈ R) and relative permeability scalars μ= μ_{R} + iμ_{I} (μ_{R}, μ_{I} μ_{R} μ_{R}R) are well known to support the propagation of plane waves with negative phase velocity (NPV), provided that both μ_{R} < 0 and μ_{R} < 0, We demonstrate that mediums which do not support NPV propagation when viewed at rest (e.g., mediums with μ_{R} > 0 and μ_{R} > 0), can support NPV propagation when they are viewed in a reference frame which is uniformly translated at a sufficiently high velocity. Representative numerical examples are used to explore the constitutive parameter regimes which support NPV propagation under the uniform-velocity condition.

Original language | English (US) |
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Pages (from-to) | 5697-5711 |

Number of pages | 15 |

Journal | Journal of Physics A: Mathematical and General |

Volume | 37 |

Issue number | 21 |

DOIs | |

State | Published - May 28 2004 |

## All Science Journal Classification (ASJC) codes

- Statistical and Nonlinear Physics
- Mathematical Physics
- General Physics and Astronomy