title: Temporal and spatial characterization of a pulsed gas jet by a compact high-speed high-sensitivity second-harmonic interferometer.
abstract: A compact modular high-speed high-sensitivity second-harmonic interferometer is used to characterize a pulsed gas jet. The temporal evolution of the line-integrated gas density is measured with a resolution of 1 μs revealing detailed information on its dynamics. The actual radial gas density distribution in the jet is obtained applying the Abel's inversion method. The sensitivity of the interferometer is 1 mrad, and its robustness, compactness and modularity make the instrument suitable for practical application. Possible use of the instrument in monitoring cluster formation, and phase-dispersion microscopy is discussed.
authors.affiliation: Italian Institute of Technology, Genova, Italy. fernando.brandi@iit.it
authors.forename: F
authors.initials: F
authors.lastname: Brandi
authors.forename: F
authors.initials: F
authors.lastname: Giammanco
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005740:Gases / Q000737:chemistry*; D007368:Interferometry / Q000295:instrumentation*; D008027:Light; D008962:Models, Theoretical; D012542:Scattering, Radiation
chemical_list: D005740:Gases