
Proceedings Paper
Observation of the nano-scale surface dynamics of femtosecond laser ablation by time-resolved soft x-ray imaging techniqueFormat | Member Price | Non-Member Price |
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Paper Abstract
We have developed the pump and probe soft x-ray imaging technique of the metal surfaces during the femtosecond laser
ablation by using the laser-driven soft x-ray laser at the wavelength of 13.9 nm. The pumping laser used for the ablation
was a Ti:Sapphire laser pulse with the duration of 80 fs pulse at a central wavelength of 795 nm, and had a Gaussian
spatial profile. By using the x-ray interferometer, the time resolved image of nano-scaled ablation dynamics of the
platinum was obtained. At the timing of 36 ps after the femtosecond laser irradiation, the maximum surface expansion
and expansion speed were measured to be about 60 nm and 1,700 m/s, respectively. We have compared between the
experimental result of the surface expansion and the profile of the ablated hole measured by the atomic force microscopy,
and discussed the fluence dependence of the femtosecond laser ablation. These results lead to better understanding of the
initial process of the laser ablation dynamics.
Paper Details
Date Published: 27 September 2013
PDF: 6 pages
Proc. SPIE 8849, X-Ray Lasers and Coherent X-Ray Sources: Development and Applications X, 88490E (27 September 2013); doi: 10.1117/12.2022834
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)
PDF: 6 pages
Proc. SPIE 8849, X-Ray Lasers and Coherent X-Ray Sources: Development and Applications X, 88490E (27 September 2013); doi: 10.1117/12.2022834
Show Author Affiliations
M. Nishikino, Japan Atomic Energy Agency (Japan)
N. Hasegawa, Japan Atomic Energy Agency (Japan)
T. Tomita, Univ. of Tokushima (Japan)
Y. Minami, The Univ. of Tokyo (Japan)
R. Takei, The Univ. of Tokyo (Japan)
M. Baba, The Univ. of Tokyo (Japan)
T. Eyama, Univ. of Tokushima (Japan)
N. Hasegawa, Japan Atomic Energy Agency (Japan)
T. Tomita, Univ. of Tokushima (Japan)
Y. Minami, The Univ. of Tokyo (Japan)
R. Takei, The Univ. of Tokyo (Japan)
M. Baba, The Univ. of Tokyo (Japan)
T. Eyama, Univ. of Tokushima (Japan)
S. Takayoshi, Univ. of Tokushima (Japan)
T. Kawachi, Japan Atomic Energy Agency (Japan)
D. Hatomi, Tohoku Univ. (Japan)
N. Ohnishi, Tohoku Univ. (Japan)
M. Yamagiwa, Japan Atomic Energy Agency (Japan)
T. Suemoto, The Univ. of Tokyo (Japan)
T. Kawachi, Japan Atomic Energy Agency (Japan)
D. Hatomi, Tohoku Univ. (Japan)
N. Ohnishi, Tohoku Univ. (Japan)
M. Yamagiwa, Japan Atomic Energy Agency (Japan)
T. Suemoto, The Univ. of Tokyo (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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