title: Wavefront improvement in an injection-seeded soft x-ray laser based on a solid-target plasma amplifier.
abstract: The wavefront of an injection-seeded soft x-ray laser beam generated by amplification of high-harmonic pulses in a λ=18.9 nm molybdenum plasma amplifier was measured by a Hartmann wavefront sensor with an accuracy of λ/32 root mean square (rms). A significant improvement in wavefront aberrations of 0.51±0.03λ rms to 0.23±0.01λ rms was observed as a function of plasma column length. The variation of wavefront characteristic as a function time delay between the injection of the seed and peak of soft x-ray amplifier pump was studied. The measurements were used to reconstruct the soft x-ray source and confirm its high peak brightness.
authors: Lu
authors: L
authors: Li
authors: Yong
authors: Y
authors: Wang
authors: Shoujun
authors: S
authors: Wang
authors: Eduardo
authors: E
authors: Oliva
authors: Liang
authors: L
authors: Yin
authors: T T Thuy
authors: TT
authors: Le
authors: Sameh
authors: S
authors: Daboussi
authors: David
authors: D
authors: Ros
authors: Gilles
authors: G
authors: Maynard
authors: Stephane
authors: S
authors: Sebban
authors: Bitao
authors: B
authors: Hu
authors: Jorge J
authors: JJ
authors: Rocca
authors: Philippe
authors: P
authors: Zeitoun