Auflistung nach Schlagwort "Ionization of gases"

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  • Analysis of electron trajectories with two-color strong-field ionization 
    Henkel, Jost; Lein, Manfred (College Park, MD : American Physical Society, 2015)
    Two-color ionization of atoms with a strong 800-nm fundamental component and a weak 400-nm component with perpendicular polarization gives detailed insight into the ionization dynamics. When the delay between the two colors ...
  • Boosting terahertz generation in laser-field ionized gases using a sawtooth wave shape 
    Martínez, P.G.D.A.; Babushkin, I.; Bergé, L.; Skupin, S.; Cabrera-Granado, E.; Köhler, C.; Morgner, Uwe; Husakou, A.; Herrmann, J. (American Physical Society, 2015)
    Broadband ultrashort terahertz (THz) pulses can be produced using plasma generation in a noble gas ionized by femtosecond two-color pulses. Here we demonstrate that, by using multiple-frequency laser pulses, one can obtain ...
  • Detection of Triacetone Triperoxide by High Kinetic Energy Ion Mobility Spectrometry 
    Schaefer, Christoph; Lippmann, Martin; Beukers, Michiel; Beijer, Niels; van de Kamp, Ben; Knotter, Jaap; Zimmermann, Stefan (Columbus, Ohio : American Chemical Society, 2023)
    High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS) is a versatile technique for the detection of gaseous target molecules that is particularly useful in complex chemical environments, while the instrumental effort ...
  • Heterologous Expression, Purification, and Biochemical Characterization of α-Humulene Synthase from Zingiber zerumbet Smith 
    Alemdar, Semra; Hartwig, Steffen; Frister, Thore; König, Jan Christoph; Scheper, Thomas; Beutel, Sascha (New York City, NY : Springer Humana Press Inc., 2016)
    The α-humulene synthase from Zingiber zerumbet Smith was expressed as a polyhistidine-tagged protein in an E. coli BL21(DE3) strain. Induction time and inductor (isopropyl-β-D-thiogalactopyranoside) concentration were ...
  • Miniaturized high-performance drift tube ion mobility spectrometer 
    Ahrens, André; Hitzemann, Moritz; Zimmermann, Stefan (Heidelberg : Springer Verlag, 2019)
    Developing powerful hand-held drift tube ion mobility spectrometers (IMS) requires small, lightweight drift tubes with high analytical performance. In this work, we present an easy-to-manufacture, miniaturized drift tube ...
  • Strong-field double ionization of Ar below the recollision threshold 
    Liu, Yunquan; Tschuch, S.; Rudenko, A.; Dürr, M.; Siegel, M.; Morgner, Uwe; Moshammer, R.; Ullrich, J. (American Physical Society, 2008)
    Nonsequential double ionization of Ar by 45 fs laser pulses (800 nm) at (4-7)×1013W/cm2 was explored in fully differential measurements. Well below the field-modified recollision threshold we enter the multiphoton regime. ...
  • Terahertz pulse generation by two-color laser fields with circular polarization 
    Tailliez, C.; Stathopulos, A.; Skupin, S.; Buožius, D.; Babushkin, I.; Vaičaitis, V.; Bergé, L. (Bristol : IOP Publishing Ltd., 2020)
    We study the influence of the polarization states of ionizing femtosecond two-color pulses on the emitted terahertz radiation in gases. A local-current model and plane-wave evaluations justify the previously-reported impact ...