title: Using a fuzzy system in the study of the luminescence and potency of neodymium ions.
abstract: The processes of energy transfer and diffusion of photons emitted by Nd(3+) ions embedded into a glass sample were investigated. The luminescence resolved in space allowed the observation of the photons' spatial distribution. In this paper, we propose a fuzzy mathematical model that permits carrying out calculations based on the neighborhood luminescence intensity of the excitation spot laser. This proposed model differs from other well-known ones in the literature because it shows clearly the luminescence intensity profile on the sample surface.
authors.affiliation: Faculty of Mathematics, Federal University of Uberlândia, Uberlândia-MG, CP 593, Brazil.
authors.forename: Daniela P L
authors.initials: DP
authors.lastname: Ferreira
authors.forename: Rosana Motta
authors.initials: RM
authors.lastname: Jafelice
authors.forename: Elias O
authors.initials: EO
authors.lastname: Serqueira