EVALUATION OF THE SELECTIVE ABSORPTION BAND OF WAVES IN A TWO-LAYER DIELECTRIC-METAL SYSTEM E. R. Kasimov , M. A. Sadykhov , R. M. Kasimov , and Ch. O. Kadzhar UDC 621.3.035.222.7:621.317.335.3 The authors investigate the dependence of the selective absorption band of electromagnetic radiation in a two-layer dielectric-metal system on the dielectric properties and thickness of a coating near wavelengths at which in the system total absorption of incident radiation develops. The narrowing of the absorption band of this system due to an increase in the thickness of a coating material and in its refraction index is established. JEPTER7492019994 JEPTER749204