Model synthesis of efficiently absorbing structures with diffraction gratings

In this paper we consider certain problems related to the synthesis of the efficiently absorbing structure (perfectly conducting periodic grating covered with a dielectric layer having complex-valued permittivity ε). The optimization of absorbing properties of this structure is carried out. As a result, analytical relations between absorbed (reflected) energy and electromagnetic and geometric characteristics of the system under study are derived. These parameters form the input data set in the synthesis problem. Some algorithms for solving relevant inverse problems are suggested