Wavefront improvement in an injection-seeded soft x-ray laser based on a solid-target plasma amplifier

Li, Lu, author; Wang, Yong, author; Wang, Shoujun, author; Oliva, Eduardo, author; Yin, Liang, author; Le, T. T. Thuy, author; Daboussi, Sameh, author; Ros, David, author; Maynard, Gilles, author; Sebban, Stephane, author; Hu, Bitao, author; Rocca, Jorge J, author; Zeitoun, Philippe, author; Optical Society of America, publisher

Wavefront improvement in an injection-seeded soft x-ray laser based on a solid-target plasma amplifier

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WangSJ_OptLet_2013_01.pdf (411.89 KB)

Date

2013-10-15

Authors

Li, Lu, author

Wang, Yong, author

Wang, Shoujun, author

Oliva, Eduardo, author

Yin, Liang, author

Le, T. T. Thuy, author

Daboussi, Sameh, author

Ros, David, author

Maynard, Gilles, author

Sebban, Stephane, author

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.

Subject

hard x rays

laser beams

soft x rays

wavefront aberrations

wavefront distortions

x ray lasers

URI

https://hdl.handle.net/10217/206012

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Wavefront improvement in an injection-seeded soft x-ray laser based on a solid-target plasma amplifier

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