Résumé
By seeding an optical-field-ionized population-inverted plasma amplifier with the 25th harmonic of an IR laser, we have achieved what we believe to be the first aberration-free laser beam in the soft x-ray spectral range. This laser emits within a cone of 1.34 mrad (1/e2) at a repetition rate of 10 Hz at a central wavelength of 32.8 nm. The beam exhibits a circular profile and wavefront distortions as low as λ/17. A theoretical analysis of these results shows that this high beam quality is due to spatial filtering of the seed beam by the plasma amplifier aperture.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 2438-2440 |
| Nombre de pages | 3 |
| journal | Optics Letters |
| Volume | 34 |
| Numéro de publication | 16 |
| Les DOIs | |
| état | Publié - 15 août 2009 |
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