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High-order harmonic generation in laser-aligned molecules

High-order harmonic generation in laser-aligned molecules

Physical Review A, 2002
Marta Castillejo
Nur hayati
E. Heesel
J. Marangos
Abstract
We demonstrate high-order harmonic generation in high-density vapors of laser-aligned molecules. Ensembles of aligned CS2 and N2 are formed in the focus of a 300 ps duration laser pulse with sufficient density (~1017 molecules cm-3) to enable efficient high-order harmonic generation by a second, 70-fs, high-intensity laser pulse. We are able to modulate and significantly enhance the harmonic intensity in

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