Abstract
We irradiated soft X-ray laser pulses onto aluminum film targets, which were evaporated on silicon and lithium fluoride substrates. After laser irradiation, we observed irradiated surfaces and confirmed damage with nanometer scale-modified structures. These damage structures were the same as those formed on the aluminum bulk surface. In this article, we discuss a possibility of the growth process of damage structures on the Al surface based on the experimental results.
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Acknowledgements
This work was partly supported by a Grant-in-Aid for Scientific Research (B), No. 25289244 (2013), from MEXT, Japan and the Russian Foundation for Basic Research (RFBR) Grant 12-02-00947a. This work was also supported by the Japan Society for the Promotion of Science (JSPS) and Russian Academy of Sciences (RAS) under the JSPS-RAS Joint Research Program (RFBR Grant 14-02-92107).
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Anatoly Ya. Faenov: Deceased 3 November 2017.
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Ishino, M., Inogamov, N.A., Tamotsu, S. et al. Study of damage structure formation on aluminum film targets by picosecond soft X-ray laser ablation around threshold region. Appl. Phys. A 124, 649 (2018). https://doi.org/10.1007/s00339-018-2072-9
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DOI: https://doi.org/10.1007/s00339-018-2072-9