title: Characterization of ejected fused silica particles following surface breakdown with nanosecond pulses.
abstract: The light emission produced near the surface of fused silica following laser-induced breakdown on the exit surface was spatially and spectrally resolved. This signal is in part generated by ejected particles while traveling outside the hot ionized region. The thermal emission produced by the particles can be separated from the plasma emission near the surface and its spectral characteristics provide information on the temperature of the particles after ejection from the surface. Assuming the emission is thermal in origin, data suggest an initial average temperature on the order of at least 0.5 eV.
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94550, USA. raman4@llnl.gov
authors.forename: Rajesh N
authors.initials: RN
authors.lastname: Raman
authors.forename: Selim
authors.initials: S
authors.lastname: Elhadj
authors.forename: Raluca A
authors.initials: RA
authors.lastname: Negres
authors.forename: Manyalibo J
authors.initials: MJ
authors.lastname: Matthews
authors.forename: Michael D
authors.initials: MD
authors.lastname: Feit
authors.forename: Stavros G
authors.initials: SG
authors.lastname: Demos
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation / Q000379:methods*; D007834:Lasers; D008027:Light; D055616:Microtechnology / Q000295:instrumentation / Q000379:methods*; D008962:Models, Theoretical; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature
chemical_list: D012822:Silicon Dioxide