The observation of a transient surface morphology in the femtosecond laser ablation process by using the soft x-ray laser probe

Noboru Hasegawa, Masaharu Nishikino, Takuro Tomita, Naofumi Ohnishi, Atsushi M. Ito, Takashi Eyama, Naoya Kakimoto, Rui Idutsu, Yasuo Minami, Motoyoshi Baba, Anatoly Y. Faenov, Nail A. Inogamov, Tetsuya Kawachi, Mitsuru Yamagiwa, Tohru Suemoto

研究成果: Conference contribution

1 引用 (Scopus)

抜粋

We have improved a soft x-ray laser (SXRL) interferometer synchronized with a Ti:Sapphire laser pulse to observe the single-shot imaging of the nano-scaled structure dynamics of the laser induced materials. By the precise imaging optics and double time fiducial system having been installed, the lateral resolution on the sample surface and the precision of the temporal synchronization between the SXRL and Ti:Sapphire laser pulses were improved to be 700 nm and 2 ps, respectively. By using this system, the initial stage (t < 200 ps) of the ablation process of the Pt surface pumped by 80 fs Ti:Sapphire laser pulse was observed by the comparison between the soft x-ray reflective image and interferogram. We have succeeded in the direct observation of the unique ablation process around the ablation threshold such as the rapid increase of the surface roughness and surface vibration.

元の言語English
ホスト出版物のタイトルX-Ray Lasers and Coherent X-Ray Sources
ホスト出版物のサブタイトルDevelopment and Applications XI
編集者Annie Klisnick, Carmen S. Menoni
出版者SPIE
ISBN(電子版)9781628417555
DOI
出版物ステータスPublished - 2015 1 1
イベントX-Ray Lasers and Coherent X-Ray Sources: Development and Applications XI Conference - San Diego, United States
継続期間: 2015 8 122015 8 13

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
9589
ISSN(印刷物)0277-786X
ISSN(電子版)1996-756X

Other

OtherX-Ray Lasers and Coherent X-Ray Sources: Development and Applications XI Conference
United States
San Diego
期間15/8/1215/8/13

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • これを引用

    Hasegawa, N., Nishikino, M., Tomita, T., Ohnishi, N., Ito, A. M., Eyama, T., Kakimoto, N., Idutsu, R., Minami, Y., Baba, M., Faenov, A. Y., Inogamov, N. A., Kawachi, T., Yamagiwa, M., & Suemoto, T. (2015). The observation of a transient surface morphology in the femtosecond laser ablation process by using the soft x-ray laser probe. : A. Klisnick, & C. S. Menoni (版), X-Ray Lasers and Coherent X-Ray Sources: Development and Applications XI [95890A] (Proceedings of SPIE - The International Society for Optical Engineering; 巻数 9589). SPIE. https://doi.org/10.1117/12.2186744