Effects of multiple-pulse iradiation in ultra-fast pulse laser processing studied through a newly developed visualization technique

通过新开发的可视化技术研究超快脉冲激光加工中多脉冲辐射的影响

• 批准号: 22360060
• 负责人: ITO YOSHIRO
• 金额: $ 12.23万
• 依托单位: Nagaoka University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22360060/
• 关键词: 特殊加工; レーザー加工; 超短パルスレーザー; 可視化; 高速度ビデオ; パルス累積効果; 超短パルス; 超硬; 加工現象; 高速度撮影; 衝撃波; レーザーアブレーション; 穴あけ加工; 薄膜

We have developed a new, high-speed video system with high time-resolution for visualizing multiple-pulse irradiation effects in ultra-fast pulse laser processing. The technique, named as high-speed laser stroboscopic videography technique, has successfully applied to observe the laser-induced phenomena during a groove and a hole drilling by a femtosecond laser on cemented tungsten carbide samples. Effects of laser pulse energy and scan speed on developments of machined futures and deposition of debris were analysed. Observed results indicate that these effects were rather complicated and demand further systematic researchs.The developed tehcnique has been successfully applied in dynamical studies on laser ablation in liquids. Effects of laser-induced cavitation bubbles on laser shock processes have been analysed. Nano-particle generation by laser ablation in liquids have been studied through the technique.

我们开发了一种具有高时间分辨率的新型高速视频系统，用于可视化超快脉冲激光加工中的多脉冲照射效果。该技术被称为高速激光频闪摄像技术，已成功应用于观察飞秒激光在硬质合金样品上钻孔和钻孔过程中的激光诱导现象。分析了激光脉冲能量和扫描速度对加工未来的发展和碎片沉积的影响。观察结果表明这些效应相当复杂，需要进一步系统研究。所开发的技术已成功应用于液体中激光烧蚀的动力学研究。分析了激光诱导空化气泡对激光冲击过程的影响。通过该技术研究了在液体中通过激光烧蚀产生纳米粒子。

项目成果

Influences of Focusing Conditions on the Dynamics of Laser Ablation at a Solid-Liquid Interface

聚焦条件对固液界面激光烧蚀动力学的影响

• 发表时间: 2013
• 期刊: Applied Physics Express
• 影响因子: 2.3
• 作者: T. T. P. Nguyen;R.Tanabe and Y. Ito
• 通讯作者: R.Tanabe and Y. Ito

Formation of LIPSSs in Ultrafast Laser Trepanning Drilling of Microholes on Cemented Tungsten Carbide

硬质合金上超快激光套孔微孔中 LIPSS 的形成

• 发表时间: 2012
• 作者: Khai Xuan Phan;Rie Tanabe;and Yoshiro Ito
• 通讯作者: and Yoshiro Ito

Dynamics of Laser Induced Under Liquid Ablation Studied by Photoelasticity Technolgy

利用光弹性技术研究激光诱导液体烧蚀动力学

• 发表时间: 2011
• 作者: Thao Nguyen;Rie Tanabe;Yoshiro Ito
• 通讯作者: Yoshiro Ito

フェムト秒レーザーによる有機薄膜太陽電池の選択的加工プロセスの高速度撮影

利用飞秒激光对有机薄膜太阳能电池选择性加工过程进行高速成像

• 发表时间: 2011
• 作者: 浅倉卓唯;田辺里枝;伊藤義郎;阿部可子;市原正浩;松本栄
• 通讯作者: 松本栄

超短パルスレーザーによる超硬合金への微細穴加工におけるLIPSSs形成

使用超短脉冲激光在硬质合金上微孔钻削中形成 LIPSS

• 发表时间: 2010
• 作者: Khai PHAM XUAN;K向縄嘉津哉;田辺里枝;伊藤義郎
• 通讯作者: 伊藤義郎