Low energy prepulse for 10 Hz operation of a soft-x-ray laser

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Near field EUV LaserThe influence on Nickel-like Molybdenum soft-x-ray laser performance and stability of a low energy laser prepulse arriving prior to the main laser pumping pulses is experimentally investigated. A promising regime for 10 Hz operation has been observed. A four times increase in soft-x-ray laser operation time with a same target surface is demonstrated. This soft-x-ray laser operation mode corresponds to an optimum delay between the prepulse and the main pulses and to a prepulse energy greater than 20 mJ. We also show that this regime is not associated with a weaker degradation of the target or any reduced ablation rate. Therefore the role of preplasma density gradient in this effect is discussed.

View full text (PDF) : J. Habib et al. Optics Express, Vol. 20, Issue 9, pp. 10128-10137 (2012)

13th ICXRL 2012

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The 13th International Conference on X-Ray Lasers (ICXRL 2012) will be held June 11th – 15th 2012 in Paris, in famous Quartier Latin, inside the historical Center of Cordeliers.This conference is a continuing series and will be dedicated to recent developments and applications of x-ray lasers and other coherent x-ray sources with attention to supporting technologies and instrumentation. New results in the generation of intense, coherent x-rays and progress toward practical devices and their applications will be reported. Areas of research in plasma-based x-ray lasers, 4th generation accelerator-based sources and higher harmonic generation will be presented.

Link : http://icxrl2012.sciencesconf.org/