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 lambda = 18.9 nm molybdenum plasma amplifier was measured by a Hartmann wavefront sensor with an accuracy of lambda/32 root mean square (rms). A significant improvement in wavefront aberrations of 0.51 +/- 0.03 lambda rms to 0.23 +/- 0.01 lambda 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. (C) 2013 Optical Society of America
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Submitted on : Tuesday, November 22, 2016 - 5:03:29 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:03 AM

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Lu Li, Yong Wang, Shoujun Wang, Eduardo Oliva, Liang Yin, et al.. Wavefront improvement in an injection-seeded soft x-ray laser based on a solid-target plasma amplifier. Optics Letters, Optical Society of America, 2013, 38 (20), ⟨10.1364/OL.38.004011⟩. ⟨hal-01400978⟩

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