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机构地区:[1]Department of Applied Physics,Nanjing University of Science and Technology
出 处:《Chinese Optics Letters》2009年第5期410-412,共3页中国光学快报(英文版)
基 金:supported by the National Natural Science Foundation of China (No.60578015);the Teaching and Research Award Program for Outstanding Young Professor in Higher Education Institute,Ministry of Education,P.R.China;the National Key Opening Experiment Foundation of Laser Technology (No.2005)
摘 要:Laser probe beam deflection technique is used for the analysis of laser-induced plasma shock waves in air and distilled water. The temporal and spatial variations of the parameters on shock fronts are studied as functions of focal lens position and laser energy. The influences of the characteristics of media are investigated on the well-designed experimental setup. It is found that the shock wave in distilled water attenuates to an acoustic wave faster than in air under the same laser energy. Good agreement is obtained between our experimental results and those attained with other techniques. This technique is versatile, economic, and simple to implement, being a promising diagnostic tool for pulsed laser processing.Laser probe beam deflection technique is used for the analysis of laser-induced plasma shock waves in air and distilled water. The temporal and spatial variations of the parameters on shock fronts are studied as functions of focal lens position and laser energy. The influences of the characteristics of media are investigated on the well-designed experimental setup. It is found that the shock wave in distilled water attenuates to an acoustic wave faster than in air under the same laser energy. Good agreement is obtained between our experimental results and those attained with other techniques. This technique is versatile, economic, and simple to implement, being a promising diagnostic tool for pulsed laser processing.
关 键 词:ACOUSTICS Laser produced plasmas LASERS Plasma shock waves Probes Thermal plumes Water analysis WAVES
分 类 号:TN241[电子电信—物理电子学]
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