Abstract
The XUV field emitted by impulsively aligned ethylene molecules during high-order harmonic generation is retrieved as a function of molecular orientation. The results can be ascribed to multielectron contributions to the harmonic emission.
Highlights
High-order harmonic generation (HHG) is a formidable tool for investigating the intimate nature of atoms and molecules, since the properties of the harmonic radiation strongly depend on the outermost electronic structure of the target species
Harmonic spectra were recorded as a function of the delay τ between the pulses; the intensity of each harmonic was obtained by spectral integration of the harmonic peak and normalization with respect to the intensity measured at negative delays
Partial rotational revivals are clearly visible along the delay scan; in addition a modulation of the harmonic intensity as a function of the harmonic order is observed
Summary
The XUV field emitted by impulsively aligned ethylene molecules during high-order harmonic generation is retrieved as a function of molecular orientation. High-order harmonic generation (HHG) is a formidable tool for investigating the intimate nature of atoms and molecules, since the properties of the harmonic radiation strongly depend on the outermost electronic structure of the target species.
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