High-speed photographic observation of shock-pressure pulses in water induced by laser energy absorption at roughened surface

Motonao Nakahara, Kunihito Nagayama, Takashi Kajiwara, Takashi Nishiyama

研究成果: Contribution to journalConference article査読

4 被引用数 (Scopus)

抄録

Absorption enhancement of laser energy at roughened surface was discovered by our group years ago. Laser ablation threshold apparently decreases by intentional roughening of the surface. Another important condition of threshold reduction is found for transparent material surface, if the pulse laser beam is irradiated from the rear side through the transparent plate. Several examples of the shock pulse induced in water and in air by pulse laser ablation of ground glass, roughened PMMA plates and fiber has been observed in detail by high-speed photography. Simple preliminary experiments to study the physical mechanism of enhanced absorption of laser energy have also been planned and demonstrated.

本文言語英語
ページ(範囲)47-52
ページ数6
ジャーナルMaterials Science Forum
566
出版ステータス出版済み - 1 29 2008
イベント2nd International Symposium on Explosion, Shock Wave and Hypervelocity Phenomena, ESHP-2 - Kumamoto, 日本
継続期間: 3 6 20073 9 2007

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「High-speed photographic observation of shock-pressure pulses in water induced by laser energy absorption at roughened surface」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル