Details

Autor(en) / Beteiligte

• Gautier, J.
• Zeitoun, P.
• Hauri, C.
• Morlens, A.-S.
• Rey, G.
• Valentin, C.
• Papalarazou, E.
• Goddet, J.-P.
• Sebban, S.
• Burgy, F.
• Mercère, P.
• Idir, M.
• Dovillaire, G.
• Levecq, X.
• Bucourt, S.
• Fajardo, M.
• Merdji, H.
• Caumes, J.-P.

Titel

Optimization of the wave front of high order harmonics

Ist Teil von

• The European physical journal. D, Atomic, molecular, and optical physics, 2008-07, Vol.48 (3), p.459-463

Ort / Verlag

Les Ulis: EDP Sciences

Erscheinungsjahr

2008

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• . We present a full optimization of the high harmonics wave front owing to the use of a soft X-ray Hartmann sensor. The sensor was calibrated using a high harmonic source with an accuracy of λ/50 root-mean-square (rms) with λ around 30 nm. We observed a high harmonic wave front of λ/7 rms, which is two times the diffraction-limit, astigmatism being the dominant aberration for every condition of generation. By clipping slightly the unfocused high harmonic beam, it is possible to produce a diffraction-limited beam containing approximately 90% of the incident energy.