Résumé
We show experimentally that a simple optical setup is able to reduce the duration of the harmonic emission generated by "long" (many optical cycles) laser pulses. By controlling the time-dependent ellipticity during the laser pulse, one can confine the harmonic emission to a narrow temporal window where the polarization is quasi-linear. The results obtained and their comparison with a simple model show a shortening of a factor 2 for harmonics located in the plateau region. Using shorter laser pulses of 15-20 fs duration should make it possible to isolate a single attosecond pulse.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 79-82 |
| Nombre de pages | 4 |
| journal | European Physical Journal D |
| Volume | 26 |
| Numéro de publication | 1 |
| Les DOIs | |
| état | Publié - 1 janv. 2003 |
| Modification externe | Oui |
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