title: Experimental study and simulation of the damage induced to various multilayer interferential mirrors by soft x-ray plasma-laser sources.
abstract: The damage induced to various multilayer interferential mirrors (MIMs) by intense soft X-ray plasma-laser sources are studied both experimentally and theoretically. The mirrors consist of periodic bilayers made up with C/W, Si/Mo, Si/W\. One set of Si/W MIMs is coated with a 100 nm Si film devised to protect the multilayer structure. In the experiment, one resolves in time the evolution of the diffraction pattern of a MIM illuminated by the radiation of a NaCl probing laser-plasma and exposed to the heating radiation emitted by a gold laser-plasma. One measures the damage threshold time and the damage threshold fluence. Simulations are performed by combining an optical code with a Lagrangian thermomechanical code giving at each time the density and the thickness of each layer in the MIM.
authors.affiliation: Laboratoire de Chimie Physique, Universit� Pierre et Marie Curie, URA CNRS 176, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France.
authors.forename: F
authors.initials: F
authors.lastname: Leguern
authors.forename: J M
authors.initials: JM
authors.lastname: André
authors.forename: J P
authors.initials: JP
authors.lastname: Lebreton
authors.forename: J L
authors.initials: JL
authors.lastname: Dutrannoy
authors.forename: J P
authors.initials: JP
authors.lastname: Chauvineau
authors.forename: K
authors.initials: K
authors.lastname: Krastev
authors.forename: J L
authors.initials: JL
authors.lastname: Larcade
authors.forename: D
authors.initials: D
authors.lastname: Friart
authors.forename: C
authors.initials: C
authors.lastname: Nazet
authors.forename: R
authors.initials: R
authors.lastname: Barchewitz