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13 September 2005 Soft x-ray lasers seeded by a high harmonic beam
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Abstract
We studied seeding of two x-ray laser transitions, 4d-4p at 32.8 nm in Kr8+ and 5d-5p 41.8 nm in Xe8+. The amplifying medium is generated by focussing a high energy circularly polarized, 35 fs 10 Hz Ti: sapphire laser system in a few mm cell filled with gas (xenon or krypton).We succeeded to increase from a factor 10 to 200 the input HHG energy, without deteriorating their optical qualities. The resulting beam was polarized, coherent and we estimate the output energy to be about 1 μJ.
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S. Sebban, Ph. Zeitoun, G. Faivre, T. Mocek, M. Fajardo, S. Kazamias, B. Cros, G. Vieux, and G. Maynard "Soft x-ray lasers seeded by a high harmonic beam", Proc. SPIE 5919, Soft X-Ray Lasers and Applications VI, 591902 (13 September 2005); doi: 10.1117/12.637389; https://doi.org/10.1117/12.637389
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