2009 Fiscal Year Final Research Report
Development of the time-resolved imaging method of nano-scale fluctuation on the material surfaces by using the soft-x-ray laser
| Project/Area Number |
20740326
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Plasma science
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
OCHI Yoshihiro Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究副主幹 (20370372)
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| Project Period (FY) |
2008 – 2009
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| Keywords | プラズマ応用 / 軟X線レーザー |
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| Research Abstract |
We developed a soft-x-ray laser interferometer dedicated to solid surface morphology. The probe soft-x-ray laser was 13.9 nm wavelength and 7 ps duration pulse. The interferometer achieved lateral resolution of 1.5 μm and depth sensitivity better than 1 nm. A single shot image could be obtained, therefore the time resolution of the system was 7 ps. We applied the soft-x-ray laser interferometer for observation of the initial dynamics of the fs laser ablation and found that the nanometer scale expansion due to a pre-ablation occurred in the 10 picoseconds range after the laser onset.
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[Journal Article] Development of Plasma Soft-X-Ray Lasers for Applications2010
Author(s)
Y. Ochi, N. Hasegawa, M. Nishikino, M. Tanaka, T. Ohba, T. Kaihori, M. Kishimoto, M. Kado, M. Ishino, T. Imazono, K. Sato, T. Kawachi
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Journal Title
proceedings of APLS 2010
Pages: 30
Peer Reviewed
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[Journal Article] Demonstration of SubmicroJoule, Spatially Coherent Soft-X-Ray Laser Pumped by 0. 1 Hertz, 10 Joule, Picosecond Laser, Jan2009
Author(s)
Y. Ochi, T. Kawachi, N. Hasegawa, M. Nishikino, T. Ohba, M. Tanaka, M. Kishimoto, T. Kaihori, K. Nagashima, A. Sugiyama
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Journal Title
J. Appl. Phys vol.48(Rapid Communication)
Pages: 1202121:1-3
Peer Reviewed
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