مشخصات پژوهش

This paper examines the possibility of optical spectral singularity in scattering spectrums of one dimensional multilayer (1DM) structure. We show that the transfer matrix method is not valid in optical spectral singularity situation. Based on the irrational wavelength concept, it is illustrated that discontinuity and optical spectral singularity in scattering spectrums of 1DM structure, physically, is impossible. By using this result, the scattering spectrums of a gained Fabry-Perot structure are obtained. The diverging value and very narrow width of transmission or reflection coefficients are interpreted, successfully.