BAND OF SELECTIVE TRANSMISSION OF ELECTROMAGNETIC RADIATION BY AN ABSORBING DIELECTRIC LAYERE. R. Kasimov UDC 621.365 Equations for determining the frequency band near the frequency of selective reflectionless transmission of electromagnetic radiation by a layer of an absorbing dielectric which separates two nonabsorbing media with dissimilar optical densities have been obtained. The absorption band of the wave in the dielectric layer as a function of the dielectric properties and thickness of the layer and of the dielectric properties of the separated media has been evaluated. Institute of Photoelectronics, National Academy of Sciences of Azerbaijan, Baku, Azerbaijan; email: email@example.com. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 1, pp. 110-113, January-February, 2003. Original article submitted February 26, 2002; revision submitted May 8, 2002.