A frequency-domain inverse problem for a dispersive stratified chiral medium

We study the inverse problem for a dispersive stratified chiral slab. The problem is treated as an analytic factorization problem in the complex plane of frequencies. Emphasis is made on the reconstruction of the spatial dependence of the medium parameters, whereas the frequency dependence is supposed to be a single-resonance Lorentz model. It is shown that, under the normal incidence of exciting plane waves, the scattering data as functions of alternating frequency allows reconstructing three independent combinations of four space-varying medium parameters. If one parameter is known, all other parameters are uniquely reconstructed. (C) 2000 American Institute of Physics. [S0022-2488(00)04607-7].