Premium
Negative‐ and positive‐phase‐velocity propagation in an isotropic chiral medium moving at constant velocity
Author(s) -
Mackay Tom G.,
Lakhtakia Akhlesh
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22810
Subject(s) - physics , phase velocity , rotating reference frame , reference frame , isotropy , group velocity , phase (matter) , inertial frame of reference , moving frame , plane wave , lorentz transformation , frame of reference , plane (geometry) , classical mechanics , frame (networking) , optics , geometry , quantum mechanics , mathematics , engineering , telecommunications
Analysis of electromagnetic planewave propagation in a medium which is a spatiotemporally homogeneous, temporally nonlocal, isotropic, chiral medium in a comoving frame of reference shows that the medium is both spatially and temporally nonlocal with respect to all non‐co‐moving inertial frames of reference. Using the Lorentz transformations of electric and magnetic fields, we show that plane waves which have positive phase velocity in the comoving frame of reference can have negative phase velocity in certain non‐co‐moving frames of reference. Similarly, plane waves which have negative phase velocity in the comoving frame can have positive phase velocity in certain non‐co‐moving frames. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2640–2643, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22810