Interference effects in two-color high-order harmonic generation

Multislit interference patterns in high-order harmonic generation in C60

We study high-order harmonic generation in C60 molecules interacting with a linearly polarized intense short laser pulse at nearand mid-infrared wavelengths, using an extension of the so-called three-step or Lewenstein model to the molecular case. The results exhibit modulations in the plateaus of the spectra at the longer wavelengths, which are present for ensembles of aligned as well as rando...

Mapping molecular orbital symmetry on high-order harmonic generation spectrum using two-color laser fields.

We have measured high-order harmonic generation spectra of D2, N2, and CO2 by mixing orthogonally polarized 800 and 400 nm laser fields. The intensity of the high-harmonic spectrum is modulated as we change the relative phase of the two pulses. For randomly orientated molecules, the phase of the intensity modulation depends on the symmetry of the molecular orbitals from which the high harmonics...

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...

Threshold-related effects in high-order harmonic generation

Phase-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...