Femtosecond laser-induced modification at aluminum/diamond interface

• Okada, Tatsuya

• Tomita, Takuro

• Ueki, Tomoyuki

• Masai, Yuki

• Bando, Yota

• Tanaka, Yasuhiro

抄録

We investigated femtosecond-laser-induced modification at an Al/diamond interface. The interface was irradiated from the backside through the diamond substrate, which is transparent to the laser beam. Extremely high pulse energies, i.e., 200 and 100 µJ/pulse, were used to irradiate the interface. The cross-section of the laser-irradiated line was observed with conventional and high-voltage transmission electron microscopy. The modification of the laser-irradiated interface was characterized by the formation of an amorphous phase sandwiched between the deformed Al film and the diamond substrate. The major chemical component of the amorphous phase was identified as carbon, blown from the diamond substrate. The newly formed interface between the amorphous phase and the diamond substrate was concave. In addition, a fine ripple structure with an average spacing one-quarter the wavelength of the laser light was formed only in the sample irradiated by the higher-energy pulses.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 56 (2), 026601-, 2017-01-24

  The Japan Society of Applied Physics

キーワード

• General Physics and Astronomy
• Physics and Astronomy (miscellaneous)
• General Engineering

詳細情報

• CRID: 1050845762396381824
• NII論文ID: 120006380970
• NII論文ID: 210000147445
• NII書誌ID: AA12295836
• ISSN: 13474065
• ISSN: 00214922
• DOI: 10.7567/jjap.56.026601
• Web Site: https://repo.lib.tokushima-u.ac.jp/111014
• Web Site: http://stacks.iop.org/1347-4065/56/i=2/a=026601/pdf
• Web Site: http://stacks.iop.org/1347-4065/56/i=2/a=026601?key=crossref.8027a4e33bd1e976b3769f380830db37
• 本文言語コード: en
• 資料種別: journal article
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