title: Laser ablation threshold dependence on pulse duration for fused silica and corneal tissues: experiments and modeling.
abstract: The surface ablation threshold fluence of fused silica and two porcine cornea layers, the epithelium and the stroma, is characterized as a function of the laser pulse duration in the range of 100 fs-5 ps for a wavelength of 800 nm (Ti:sapphire laser system). The plateaulike region observed between 100 fs and 1 ps for the corneal layers indicates that for use in laser surgery, laser pulse durations chosen within this range should be practically equivalent. Our model predicts that the ablation threshold will decrease rapidly for pulse durations in the low end of the femtosecond regime.
authors.affiliation: Institut National de la Recherche Scientifique-Energie, Matériaux et Télécommunications, Varennes, Quebec, Canada.
authors.forename: Dominic
authors.initials: D
authors.lastname: Giguère
authors.forename: Gilles
authors.initials: G
authors.lastname: Olivié
authors.forename: François
authors.initials: F
authors.lastname: Vidal
authors.forename: Stéphanie
authors.initials: S
authors.lastname: Toetsch
authors.forename: Guillaume
authors.initials: G
authors.lastname: Girard
authors.forename: Tsuneyuki
authors.initials: T
authors.lastname: Ozaki
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Kieffer
authors.forename: Ossama
authors.initials: O
authors.lastname: Nada
authors.forename: Isabelle
authors.initials: I
authors.lastname: Brunette
mesh_terms: D003315:Cornea / Q000601:surgery*; D003319:Corneal Stroma / Q000601:surgery; D019573:Epithelium, Corneal / Q000601:surgery; D006801:Humans; D053685:Laser Therapy / Q000379:methods*; D007834:Lasers; D008962:Models, Theoretical; D012822:Silicon Dioxide / Q000528:radiation effects*
chemical_list: D012822:Silicon Dioxide