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arXiv · 1501.01078

Dispersion Relation in Chiral Media: Credibility of Drude-Born-Fedorov equations

Kikuo Cho
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Abstract

Disperion relation of EM field in a chiral medium is discussed from the viewpoint of constitutive equations to be used as a partner of Maxwell equations. The popular form of Drude-Born-Fedorov (DBF) constitutive eqs is criticized via a comparison with the first-principles macroscopic constitutive eqs. The two sets of eqs show a decisive difference in the dispersion curve in the resonant region of chiral, left-handed character, in the form of presence or absence of linear crossing at k=0. DBF eqs could be used only as a phenomenology in off-resonant region.

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Kikuo Cho. 2015-01-06. Dispersion Relation in Chiral Media: Credibility of Drude-Born-Fedorov equations. https://arxiv.org/abs/1501.01078

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