An Inverse Problem For Maxwell’s Equations In Non-isotropic Media

We consider Maxwell’s equations for a non-isotropic and inhomogeneous medi-um. We discuss an inverse problem of determining the permittivity tensor and the permeability tensor in the constitutive relations from a finite number of lateral boundary measurements. By applying a Carleman estimate, we prove an estimate of the Lipschitz type for stability provided that ε1,ε,μ1,μ satisfy some a priori conditions.