منابع مشابه
Intensity-dependent atomic-phase effects in high-order harmonic generation.
The far-field angular distributions of high-order harmonics of a 1054-nm laser, with orders ranging from the lower teens to the upper thirties, have been measured in thin, low-density Ar, Kr, and Xe targets. The 1.25times-diffraction-limited, 1.4-ps-duration, Gaussian laser pulses were focused to intensities ranging from 3 X 10' to 3 X 10' W/cm, using f/70 optics. A gas target localized the gas...
متن کاملRole of the intramolecular phase in high-harmonic generation.
We study numerically the generation of high-order harmonics by two-center molecules for arbitrary angles between the molecular axis and the laser polarization axis. For fixed angle, the harmonic spectrum exhibits a minimum at a frequency which is independent of the laser parameters. The amplitude of each harmonic is strongly angle dependent, and a pronounced minimum is found at the same angle w...
متن کاملPhase-dependent effects in bichromatic high-order harmonic generation
C. Figueira de Morisson Faria, D. B. Milošević,* and G. G. Paulus Max Planck Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany Max-Born-Institut für nichtlineare Optik und Kurzzeitsspektroskopie, Max-Born-Strasse 2A, 12489 Berlin, Germany Max Planck Institut für Quantenoptik, Hans-Kopfermann Strasse 1, 85748 Garching, Germany ~Received 4 November 1999; publish...
متن کاملMolecules in intense laser fields : From Coulomb explosion to high order harmonic generation
The nonperturbative response of molecules in ultrashort (t < 20 femtoseconds), intense (I 10 W/cm ) laser fields can only be described by accurate numerical solutions of the corresponding time-dependent Schrödinger equation (non-relativistic) or Dirac (relativistic) equations. Different time scales, attosecond (10 s) for electrons, femtosecond (10 s) for nuclei make the accuracy of such numeric...
متن کاملHigh-order-harmonic generation using gas-phase H2O molecules
Song-Feng Zhao,1,2 Cheng Jin,1 R. R. Lucchese,3 Anh-Thu Le,1 and C. D. Lin1 1J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA 2Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China 3Department of Chemistry,...
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ژورنال
عنوان ژورنال: Journal of Physics B: Atomic, Molecular and Optical Physics
سال: 2018
ISSN: 0953-4075,1361-6455
DOI: 10.1088/1361-6455/aac787