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Proceedings Paper

Nano-meter scale modifications on material surfaces induced by soft x-ray laser pulse irradiations
Author(s): Masahiko Ishino; Anatoly Faenov; Momoko Tanaka; Satoshi Tamotsu; Tatiana Pikuz; Noboru Hasegawa; Masaharu Nishikino; Nail Inogamov; Igor Skobelev; Vladimir Fortov; Genri Norman; Sergey Starikov; Vladimir Stegailov; Takeshi Kaihori; Tetsuya Kawachi; Mitsuru Yamagiwa
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Paper Abstract

To study the interactions between a soft x-ray laser (SXRL) and various materials, we irradiated Al, Au, Cu, and Si with the SXRL beam pulses having a wavelength of 13.9 nm and duration of 7 ps. Following the irradiation, the induced structures were observed using a scanning electron microscope and an atomic force microscope. With single pulse irradiation, conical structures were observed on the Al surface, and ripple-like structures were formed on the Au and Cu surfaces. The conical structures were destroyed under multiple SXRL pulse irradiation. On the other hand, the developments of modified structures were observed after multiple pulse irradiations on the Au and Cu surfaces. On the Si surface, deep holes, that seemed to be molten structures induced by the accumulation of multiple pulse irradiations, were found. Therefore, it is concluded that the SXRL pulse irradiations of various material surfaces cause different types of surface modifications, and the changes in the surface behaviors are attributed to the differences in the elemental properties of each materials, such as the melting point and the attenuation length of x-rays.

Paper Details

Date Published: 27 September 2013
PDF: 8 pages
Proc. SPIE 8849, X-Ray Lasers and Coherent X-Ray Sources: Development and Applications X, 88490F (27 September 2013); doi: 10.1117/12.2022425
Show Author Affiliations
Masahiko Ishino, Japan Atomic Energy Agency (Japan)
Anatoly Faenov, Japan Atomic Energy Agency (Japan)
Joint Institute for High Temperatures (Russian Federation)
Momoko Tanaka, Japan Atomic Energy Agency (Japan)
Satoshi Tamotsu, Nara Women's Univ. (Japan)
Tatiana Pikuz, Japan Atomic Energy Agency (Japan)
Joint Institute for High Temperatures (Russian Federation)
Noboru Hasegawa, Japan Atomic Energy Agency (Japan)
Masaharu Nishikino, Japan Atomic Energy Agency (Japan)
Nail Inogamov, Landau Institute for Theoretical Physics (Russian Federation)
Igor Skobelev, Joint Institute for High Temperatures (Russian Federation)
Vladimir Fortov, Joint Institute for High Temperatures (Russian Federation)
Genri Norman, Joint Institute for High Temperatures (Russian Federation)
Moscow Institute of Physics and Technology (Russian Federation)
Sergey Starikov, Joint Institute for High Temperatures (Russian Federation)
Moscow Institute of Physics and Technology (Russian Federation)
Vladimir Stegailov, Joint Institute for High Temperatures (Russian Federation)
Moscow Institute of Physics and Technology (Russian Federation)
Takeshi Kaihori, Japan Atomic Energy Agency (Japan)
Tetsuya Kawachi, Japan Atomic Energy Agency (Japan)
Mitsuru Yamagiwa, Japan Atomic Energy Agency (Japan)


Published in SPIE Proceedings Vol. 8849:
X-Ray Lasers and Coherent X-Ray Sources: Development and Applications X
Annie Klisnick; Carmen S. Menoni, Editor(s)

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