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|Date of Issue||2016|
|Identifier (Citation)||Yasuhiko NISHIMURA et al 2016 J. Phys.: Conf. Ser. 717 012073|
|Description||This reports provide an amorphous nanostructuralization technique on the surface modification in Highly Oriented Pyrolytic Graphite (HOPG) by using a femtosecond laser. We showed, for the first time, that the surface of HOPG is changed to the amorphous nanostructuralization graphite by using a femtosecond laser-driven compression technique. Our results also suggest that the HOPG surface is changed until the deeper area from the surface by the laser-driven shock wave. A single shot of a femtosecond laser beam (1.27,similar to,1.33x10(14) W cm(-2) in intensity, with 2mm-diameter, and 110 fs in pulse width) is irradiated under the vacuum ambience onto a 2mm-thick of HOPG. The calculated impact pressures on a sample was 8.3 similar to 8.7 GPa. Crystal structure in the HOPG were analyzed using a Raman spectroscopy and an X-ray diffraction, those analyzing depth from the surface were 50 nm and 350pm, respectively.|
|Rights||Creative Commons Attribution 3.0 Unported|
|Title||Amorphous nanostructuralization in HOPG by 10(14) W cm(-2) laser|
|Department||Department of Physics|
|Journal Title||9th International Conference on Inertial Fusion Sciences and Applications (ifsa 2015)|