Auflistung nach Schlagwort "High order harmonic generation"

Auflistung nach Schlagwort "High order harmonic generation"

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  • Compact 200 kHz HHG source driven by a few-cycle OPCPA 
    Harth, Anne; Guo, Chen; Cheng, Yu-Chen; Losquin, Arthur; Miranda, Miguel; Mikaelsson, Sara; Heyl, Christoph M.; Prochnow, Oliver; Ahrens, Jan; Morgner, Uwe; L'Huillier, Anne; Arnold, Cord L. (Bristol : Institute of Physics Publishing, 2018)
    We present efficient high-order harmonic generation (HHG) based on a high-repetition rate, few-cycle, near infrared (NIR), carrier-envelope phase stable, optical parametric chirped pulse amplifier (OPCPA), emitting 6 fs ...
  • Determination of ionization and tunneling times in high-order harmonic generation 
    Zhao, Jing; Lein, Manfred (College Park, MD : American Physical Society, 2013)
    From the numerical solution of the time-dependent Schrödinger equation, we obtain the times of ionization and return of the laser-driven electron in high-order harmonic generation by probing the dynamics with a second ...
  • Emission times in high-order harmonic generation 
    Chirilä, C.C.; Dreissigacker, Ingo; van der Zwan, Elmar V.; Lein, Manfred (College Park, MD : American Physical Society, 2010)
    We calculate the emission times of the radiation in high-order harmonic generation using the Gabor transform of numerical data obtained from solving the time-dependent Schrödinger equation in one, two, and three dimensions. ...
  • Explanation for the smoothness of the phase in molecular high-order harmonic generation 
    Chirilä, C.C.; Lein, Manfred (College Park, MD : American Physical Society, 2009)
    We analyze the orientation dependence of harmonic amplitudes and phases from laser driven H2+. We use the Lewenstein model, with and without employing the saddle-point approximation for the summation over electron momenta. ...
  • Extreme-ultraviolet frequency combs from high-order harmonic generation with few-cycle pulse trains 
    Tudorovskaya, Maria; Lein, Manfred (College Park, MD : American Physical Society, 2017)
    The spectrum of a high-repetition train of laser pulses consists of many equally spaced lines, forming an optical frequency comb which is useful for high-precision spectroscopy. By exposing atoms to a train of strong pulses, ...
  • High-order harmonic generation directly from a filament 
    Steingrube, D.S.; Schulz, E.; Binhammer, Thomas; Gaarde, M.B.; Couairon, A.; Morgner, Uwe; Kovacev, M. (Bristol : IOP Publishing Ltd., 2011)
    The synthesis of isolated attosecond pulses (IAPs) in the extreme ultraviolet (XUV) spectral region has opened up the shortest time scales for timeresolved studies. It relies on the generation of high-order harmonics (HHG) ...
  • High-order harmonic generation in the presence of a resonance 
    Tudorovskaya, Maria; Lein, Manfred (College Park, MD : American Physical Society, 2011)
    We investigate high-order harmonic generation from laser-irradiated systems that support a shape resonance. From the numerical solution of the time-dependent Schrödinger equation, we calculate the harmonic spectra and the ...
  • Molecular imaging using high-order harmonic generation and above-threshold ionization 
    van der Zwan, Elmar V.; Lein, Manfred (College Park, MD : American Physical Society, 2012)
    Accurate molecular imaging via high-order harmonic generation relies on comparing harmonic emission from a laser-irradiated molecule and an adequate reference system. However, an ideal reference atom with the same ionization ...
  • Multiconfiguration time-dependent Hartree approach for electron-nuclear correlation in strong laser fields 
    Jhala, Chirag; Lein, Manfred (College Park, MD : American Physical Society, 2010)
    The multiconfiguration time-dependent Hartree approach is applied to study the electron-nuclear correlation in the dynamics of molecules subject to strong external laser fields, using the example of a model hydrogen molecular ...
  • Phase matching of high-order harmonics in a semi-infinite gas cell 
    Steingrube, Daniel S.; Vockerodt, Tobias; Schulz, Emilia; Morgner, Uwe; Kovačev, Milutin (American Physical Society, 2009)
    Phase matching of high-order harmonic generation is investigated experimentally for various parameters in a semi-infinite gas-cell (SIGC) geometry. The optimized harmonic yield is identified using two different noble gases ...
  • Prediction of attosecond light pulses in the VUV range in a high-order-harmonic-generation regime 
    Henkel, Jost; Witting, Tobias; Fabris, Davide; Lein, Manfred; Knight, Peter L.; Tisch, John W.G.; Marangos, Jonathan P. (College Park, MD : American Physical Society, 2013)
    Attosecond light pulses within the vacuum ultraviolet (VUV) energy range are predicted by solving the time-dependent Schrödinger equation (TDSE) for a model neon atom in short laser pulses of different field polarization ...
  • Two-center interference and ellipticity in high-order harmonic generation from H2+ 
    van der Zwan, Elmar V.; Lein, Manfred (College Park, MD : American Physical Society, 2010)
    We present a theoretical investigation into the two-center interference in aligned H2+. The influence of the laser field on the recombination step is investigated by comparing laser-induced harmonic generation with harmonic ...
  • Vibrational-state and isotope dependence of high-order harmonic generation in water molecules 
    Falge, Mirjam; Engel, Volker; Lein, Manfred (College Park, MD : American Physical Society, 2010)
    We report calculations on high-order harmonic generation in water molecules. Spectra are determined for various initial vibrational states of H2O and its isotope D2O. It is demonstrated that the ratio of the spectra for ...