Causality and Its Implications for Passive and Active Media

Abstract

The implications of causality are examined in detail for the permittivity, permeability, and refractive index of passive and active media. Particular attention is given to negative index media.

URSI EMTS 2010 conference, Berlin 2010

References in corpus (5)

• Fresnel equations and the refractive index of active media
• On the electromagnetic properties of active media
• A right-handed isotropic medium with a negative refractive index
• Bounds for the refractive indices of metamaterials
• An extremal problem related to negative refraction