%0 Journal Article
%T X-ray Chirped Pulse Amplification: towards GW Soft X-ray Lasers
%A Philippe Zeitoun
%A Eduardo Oliva
%A Thi Thu Thuy Le
%A David Ros
%A St¨¦phane Sebban
%A Lu Li
%A Pedro Velarde
%A Marta Fajardo
%J Applied Sciences
%D 2013
%I MDPI AG
%R 10.3390/app3030581
%X Extensive modeling of the seeding of plasma-based soft X-ray lasers is reported in this article. Seminal experiments on amplification in plasmas created from solids have been studied in detail and explained. Using a transient collisional excitation scheme, we show that a 18 ¦ÌJ, 80 fs fully coherent pulse is achievable by using plasmas pumped by a compact 10 Hz laser. We demonstrate that direct seeding of plasmas created by nanosecond lasers is not efficient. Therefore, we propose and fully study the transposition to soft X-rays of the Chirped Pulse Amplification (CPA) technique. Soft X-ray pulses with energy of 6 mJ and 200 fs duration are reachable by seeding plasmas pumped by compact 100 J, sub-ns, 1 shot/min lasers. These soft X-ray lasers would reach GW power, corresponding to an increase of 100 times as compared to the highest peak power achievable nowadays in the soft X-ray region (30 eV¨C1 keV). X-ray CPA is opening new horizon for soft x-ray ultra-intense sources.
%K high harmonic generation
%K X-ray laser
%K plasma
%K chirped pulse amplification
%K modeling
%U http://www.mdpi.com/2076-3417/3/3/581