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Interaction of electromagnetic radiation (250–850 nm, 2.5–15.3 μm, and 11.5–17.1 mm) with the isatin-β-anil (C14H10N2O) films deposited with the aid of flow coating is considered. It is shown that the modification of original structure using N, Br, and F atoms leads to frequency deviations and variations in the amplitude of luminescence and changes of the frequency dependences of the absorption coefficients relative to those of the original isatin-β-anil.

The interaction between microwave electromagnetic waves and conducting films with a nanometer thickness in the homogeneous region approximation and a structure consisting of micro- and nanoparticles has been numerically simulated. Using rigorous coupled-wave analysis, the dynamics of the changes in the optical coefficients from the values characteristic of a dielectric to the values for a homogeneous conducting film has been investigated and the effect of the size and distribution of conducting islands on the electrodynamic characteristics has been analyzed.