| Issue |
EPJ Web of Conferences
Volume 41, 2013
XVIIIth International Conference on Ultrafast Phenomena
|
|
|---|---|---|
| Article Number | 01007 | |
| Number of page(s) | 3 | |
| Section | Attosecond and High-Order Harmonic Generation and Measurement | |
| DOI | https://doi.org/10.1051/epjconf/20134101007 | |
| Published online | 13 March 2013 | |
https://doi.org/10.1051/epjconf/20134101007
Fractional high-harmonic combs by attosecond-precision split-spectrum pulse control
Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany
Few-cycle laser fields enable pulse-shaping control of high-order harmonic generation by time delaying variable broadband spectral sections. We report the experimental generation of fractional (noninteger) high-harmonic combs by the controlled interference of two attosecond pulse trains. Additionally the energy of the high harmonics is strongly tuned with the relative time delay. We quantify the tuning to directly result from the controlled variation of the instantaneous laser frequency at the shaped driver pulse intensity maximum.
© Owned by the authors, published by EDP Sciences, 2013
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