A Novel Acoustic Diagnostic Method on Femtosecond Laser Plasma Shock Wave

摘要：

　　In the paper, the optical fiber F-P acoustic emission sensing probe has been proposed to monitor online space-time progress of femtosecond laser plasma shock wave for the first time, the structure of sensing probe is microstructure with full optical fiber probes without glue, it can measure weak acoustic emission high frequency signal on femtosecond laser plasma shock wave.In the process of femtosecond laser ablating copper, iron and aluminum, we research and analyze the plasma shock wave acoustic emission signal change regulation under different laser pulse energy and different distance between the laser and the optical fiber sensing probe, and we analyze the feature of the acoustic emission signal spectrum.Experiment establishes a kind of new optical fiber sensing measurement method for femtosecond laser plasma shock wave acoustic emission signal.

关键词： Optical fiber sensing technology Femtosecond laser Plasma shock wave Acoustic signal

作者: Dong Zhong Zhongming Li Ruolin Ruan Chen Chun

作者单位: Department of Electronic and Information, Hubei University of Science and Technology, Xianning,Hubei College of biomedical engineering, Hubei University of Science and Technology, Xianning, Hubei,China College of physical education, Hubei University of Science and Technology, Xianning, Hubei,China

会议类型: 国际会议

会议名称: The 12th Asia-Pacific Conference on Materials Processing(APCMP2016)(第12届亚太材料加工会议)

会议地点: 青岛

会议语种:英文

页码: 287-292

在线出版日期: 2016-06-16（万方平台首次上网日期，不代表论文的发表时间）