Abstract: The reflection and tranEmiedon spectra of oblique-incident waves at a wultiple-slab-generalized fractal layer which consists of a fraotal set are studied.A generalized method,with self-similarity, is used for this purpose.The genemlized formulae as well as a new type of reflection and transmission spectra,i.e., the self-similar spectra, are obtained.This type of spectra may be used in electronic countermeasure, film optics and photoelectronic devices,and so on.

Key words: multiple-slab-generalized fractal layer, self-similarity, reflection and transmission spectra