title: White-light-modified Talbot array illuminator with a variable density of light spots.
abstract: A flexible array illuminator, comprising only two conventional optical elements, with a variable density of bright white-light spots is presented. The key to our method is to obtain with a single diffractive lens an achromatic version of different fractional Talbot images, produced by free-space propagation, of the amplitude distribution at the back focal plane of a periodic refractive microlens array under a broadband point-source illumination. Some experimental results of our optical procedure are also shown.
authors.forename: E
authors.initials: E
authors.lastname: Tajahuerce
authors.forename: E
authors.initials: E
authors.lastname: Bonet
authors.forename: P
authors.initials: P
authors.lastname: Andrés
authors.forename: C J
authors.initials: CJ
authors.lastname: Zapata-Rodríguez
authors.forename: V
authors.initials: V
authors.lastname: Climent