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Journal Articles Optics Letters Year : 2009

Aberration-free laser beam in the soft x-ray range

Jean-Philippe Goddet
Stéphane Sebban
Philippe Zeitoun
Constance Valentin
F. Tissandier
Guillaume Lambert
D. Douillet
F. Burgy


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/e^2) 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.
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Dates and versions

hal-00508899 , version 1 (06-08-2010)



Jean-Philippe Goddet, Stéphane Sebban, J. Gautier, Philippe Zeitoun, Constance Valentin, et al.. Aberration-free laser beam in the soft x-ray range. Optics Letters, 2009, 34 (16), pp.2438-2440. ⟨10.1364/OL.34.002438⟩. ⟨hal-00508899⟩
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