title: Reflectivity of a disordered monolayer estimated by graded refractive index and scattering models.
abstract: Reflectivity of a random monolayer, consisting of transparent spherical particles, is estimated using a graded refractive index model, an effective medium approach, and two scattering models. Two cases, a self-standing film and one with a substrate, are considered. Neither the surrounding medium nor the substrate are absorbing materials. Results at normal incidence, with different particle sizes, covering ratios and refractive indexes, are compared. The purpose of this work is to find under which circumstances, for reflectivity at normal incidence, a particle monolayer behaves as a graded refractive index film.
authors.affiliation: Laboratorio de Óptica Cuántica, Departamento de Física, Universidad A. Metropolitana-Iztapalapa, Mexico. ruth@xanum.uam.mx
authors.forename: Ruth
authors.initials: R
authors.lastname: Diamant
authors.forename: Augusto
authors.initials: A
authors.lastname: Garcí-Valenzuela
authors.forename: Manuel
authors.initials: M
authors.lastname: Fernández-Guasti