Macroscopic Effects in Noncollinear High-Order Harmonic Generation

Ultrahigh-order wave mixing in noncollinear high harmonic generation.

We show that noncollinear high harmonic generation (HHG) can be fully understood in terms of nonlinear optical wave mixing. We demonstrate this by superposing on the fundamental ω1 field its second harmonic ω2 of variable intensity in a noncollinear geometry. It allows us to identify, by momentum conservation, each field's contribution (n1,n2) to the extreme ultraviolet emission at frequency Ω ...

High-order harmonic generation in Xe, Kr, and Ar driven by a 2.1-m source: High-order harmonic spectroscopy under macroscopic effects

Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We experimentally and numerically study the atomic response and pulse propagation effects of high-order harmonics g...

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...