title: Energy-partition diagnostic for measuring time-resolved scattering and absorption in burst-mode laser ablation.
abstract: We describe an energy-partition diagnostic based on integrating sphere principle for measuring absorption and scattering in plasma-mediated ablation by a high repetition-rate (133 MHz), pulsetrain-burst ultrafast-pulse laser. The system time-resolves the partition of elastically scattered laser light into specular reflection, diffuse reflection, and transmission, giving access to per-pulse absorption dynamics. Physical events such as optical breakdown and incubation effects in glass and aluminum are illustrated.
authors.affiliation: Department of Physics and Institute for Optical Sciences, University of Toronto, Toronto M5S 1A7, Canada.
authors.forename: Z
authors.initials: Z
authors.lastname: Qian
authors.affiliation: Department of Physics and Institute for Optical Sciences, University of Toronto, Toronto M5S 1A7, Canada.
authors.forename: J E
authors.initials: JE
authors.lastname: Schoenly
authors.affiliation: Department of Physics and Institute for Optical Sciences, University of Toronto, Toronto M5S 1A7, Canada.
authors.forename: A
authors.initials: A
authors.lastname: Covarrubias
authors.affiliation: Princess Margaret Cancer Centre and Department of Medical Biophysics, University of Toronto, Toronto M5G 1L7, Canada.
authors.forename: L
authors.initials: L
authors.lastname: Lilge
authors.affiliation: Department of Physics and Institute for Optical Sciences, University of Toronto, Toronto M5S 1A7, Canada.
authors.forename: R S
authors.initials: RS
authors.lastname: Marjoribanks
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D005898:Glass / Q000737:chemistry*; D007834:Lasers; D012542:Scattering, Radiation
chemical_list: D000535:Aluminum