Abstract
In order to realize a compact and high repetition rate plasma X-ray laser, we have developed a recombination scheme plasma X-ray laser. In particular, we focused on a laser oscillation of Li-like aluminum 3d-4f transition (15.5 nm), which was already demonstrated in a high-density and low-temperature Al laser plasma with a low gain coefficient. In this study, by using an Nd:YAG laser (500 ps, 3 J, 16 pulse-trains) we created the lasing media and succeeded in laser oscillation at 15.5 nm. The optimization of the pulse-train in terms of the pulse duration and its interval enhanced the gain coefficient to g = 4.3 cm−1.
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Acknowledgements
This work was supported by JKA and its promotion funds from AUTO RACE.
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Namba, S. et al. (2020). Li-like Aluminum Plasma Soft X-ray Laser by Means of Recombination Scheme. In: Kozlová, M., Nejdl, J. (eds) X-Ray Lasers 2018. ICXRL 2018. Springer Proceedings in Physics, vol 241. Springer, Cham. https://doi.org/10.1007/978-3-030-35453-4_10
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DOI: https://doi.org/10.1007/978-3-030-35453-4_10
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