title: Optical filters with fractal transmission spectra based on diffractive optics.
abstract: The duality between the axial irradiance distribution originated by any circularly symmetric diffracting aperture under monochromatic illumination and its diffracted spectral intensity at a fixed on-axis point under broadband illumination is highlighted and experimentally investigated. Two applications are derived from this basic result. On the one hand, we suggest the use of a broadband source and a spectrometer for a single-shot measurement of the axial response of pupil filters. Second, we implement a spectral filter having a transmission spectrum with a fractal structure of frequencies. Experimental results and potential applications in synthetic spectra designs are provided.
authors.affiliation: Departament de Física, GROC-UJI, Universitat Jaume I, Catelló, Spain. omendoza@uji.es
authors.forename: Omel
authors.initials: O
authors.lastname: Mendoza-Yero
authors.forename: Gladys
authors.initials: G
authors.lastname: Mínguez-Vega
authors.forename: Mercedes
authors.initials: M
authors.lastname: Fernández-Alonso
authors.forename: Jesús
authors.initials: J
authors.lastname: Lancis
authors.forename: Enrique
authors.initials: E
authors.lastname: Tajahuerce
authors.forename: Vicent
authors.initials: V
authors.lastname: Climent
authors.forename: Juan A
authors.initials: JA
authors.lastname: Monsoriu