Abstract
We report on a systematic investigation of the influences of gas pressure, focal position and focusing geometry on high harmonic generation by use of mid-infrared femtosecond laser pulses. We also discuss the spatial characteristics of harmonics under different focusing conditions. By optimizing the parameters, we experimentally observed the generation of 1 kHz, low divergence coherent X-ray beams in the water-window region.
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Yao, J., Xiong, H., Xu, H. et al. A systematic investigation of high harmonic generation using mid-infrared driving laser pulses. Sci. China Phys. Mech. Astron. 53, 1054–1059 (2010). https://doi.org/10.1007/s11433-010-4016-z
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DOI: https://doi.org/10.1007/s11433-010-4016-z