Résumé
We demonstrate the use of a plasma mirror to obtain 60-fs 10-TW laser pulses with a temporal contrast of 108 on a nanosecond time scale and 106 on a picosecond time scale, and we use these high-contrast pulses to generate high harmonics by nonlinear reflection on a plasma with a steep electronic density gradient. Well-collimated harmonics up to 20th order are observed for a laser intensity of ≈3 × 1017 W/cm2, whereas no harmonics are obtained without the plasma mirror.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 893-895 |
| Nombre de pages | 3 |
| journal | Optics Letters |
| Volume | 29 |
| Numéro de publication | 8 |
| Les DOIs | |
| état | Publié - 15 avr. 2004 |
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