title: Fabrication and characterization of linear diffusers based on concave micro lens arrays.
abstract: We present a new approach of beam homogenizing elements based on a statistical array of concave cylindrical microlens arrays. Those elements are used to diffuse light in only one direction and can be employed together with fly's eye condensers to generate a uniform flat top line for high power coherent light sources. Conception, fabrication and characterization for such 1D diffusers are presented in this paper.
authors.affiliation: Optics and Photonics Technology Laboratory, Ecole Politechnique Federale de Lausanne, A.-L. Breguet 2, Neuchâtel, Switzerland. roland.bitterli@epfl.ch
authors.forename: Roland
authors.initials: R
authors.lastname: Bitterli
authors.forename: Toralf
authors.initials: T
authors.lastname: Scharf
authors.forename: Hans-Peter
authors.initials: HP
authors.lastname: Herzig
authors.forename: Wilfried
authors.initials: W
authors.lastname: Noell
authors.forename: Nico
authors.initials: N
authors.lastname: de Rooij
authors.forename: Andreas
authors.initials: A
authors.lastname: Bich
authors.forename: Sylvain
authors.initials: S
authors.lastname: Roth
authors.forename: Kenneth J
authors.initials: KJ
authors.lastname: Weible
authors.forename: Reinhard
authors.initials: R
authors.lastname: Voelkel
authors.forename: Maik
authors.initials: M
authors.lastname: Zimmermann
authors.forename: Michael
authors.initials: M
authors.lastname: Schmidt
mesh_terms: D003198:Computer Simulation; D004058:Diffusion; D004867:Equipment Design; D054018:Lasers, Excimer; D007909:Lenses; D008855:Microscopy, Electron, Scanning; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000295:instrumentation*; D012822:Silicon Dioxide
chemical_list: D012822:Silicon Dioxide