Frequency-sheared, time-delayed extreme-ultraviolet pulses produced by high-harmonic generation in argon.
OPTICS LETTERS 2005;
30:1731-3. [PMID:
16075553 DOI:
10.1364/ol.30.001731]
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Abstract
We report the production of frequency-sheared high harmonics in argon by control of the envelope and chirp of the electric field of the femtosecond driving laser pulse. Using the classic three-step model of high-harmonic generation, we established a direct link between the properties of the harmonics and the fully characterized driving pulses. A simulation of the single-atom response in the strong-field approximation confirms the simple picture and shows good agreement with the experimental results.
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