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Second generation X-ray lasers

Abstract : High harmonic amplification is shown in an optical-field ionized X-ray laser. The 4d–4p X-ray line of Kr^8+ at 32.8 nm, which has a close match to the 25th harmonic of the infrared laser, was amplified up to 200 times. The energy-extraction regime was also achieved, which depended on the level of seeding. This second-generation X-ray laser is fully polarized, has low divergence and shows a high degree of coherence. The duration is also expected to be short, fulfilling the requirements for an ultra-intense tabletop X-ray laser. Conditions for higher energy output are also suggested.
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Submitted on : Friday, September 24, 2010 - 5:51:46 PM
Last modification on : Sunday, June 26, 2022 - 11:52:18 AM

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Marta Fajardo, Philippe Zeitoun, Gabriel Faivre, Stéphane Sebban, T. Mocek, et al.. Second generation X-ray lasers. Journal of Quantitative Spectroscopy and Radiative Transfer, Elsevier, 2006, 99 (1-3), pp.142-152. ⟨10.1016/j.jqsrt.2005.05.011⟩. ⟨hal-00521037⟩



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