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arXiv · 1904.10233

Enhancing keV high harmonic signals generated by long-wave infrared lasers

Zenghu Chang
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Abstract

It is demonstrated by single-atom simulations that X-ray signals in the 3.4 to 4 keV region from an 8 micron laser driven high harmonic generation can be increased by more than two orders of magnitude when a single-cycle pulse centered at 800 nm is added. The ionization probability of a helium atom by the two-pulse field is set to 4.56x10^-5, which is needed for balancing the index of refraction of free electrons with that of neutral helium atoms to achieve phase matching.

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Zenghu Chang. 2019-04-23. Enhancing keV high harmonic signals generated by long-wave infrared lasers. https://arxiv.org/abs/1904.10233

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