Absorption of energy of electromagnetic radiation in interference insulated structures with nanoporous alumina

Transmittance and reflectance spectra of electromagnetic radiation by double-layer interference structures made of lithium niobate plate and naporous alumina membrane with evaporated thin nichrome film were studied. In the quarter-wave range the effect of nichrome film thickness on reflective characteristics of the proposed double-layer interference structures was also established in the frequency range of 8–12 HGz.