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Updated: Jul 2, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
Highly versatile, two-color setup for high-order harmonic generation using spatial light modulators
A-K Raab1, M Schmoll2, E R Simpson1
1Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden.
Abstract:
We present a novel, interferometric, two-color, high-order harmonic generation setup based on a turn-key Ytterbium-doped femtosecond laser source and its second harmonic. Each interferometer arm contains a spatial light modulator with individual capabilities to manipulate the spatial beam profiles and to stabilize the relative delay between the fundamental and the second harmonic. In addition, separate control of the relative power and focusing geometries of the two color beams is implemented to conveniently perform automated scans of multiple parameters. A live diagnostics system gives continuous information during ongoing measurements.
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