High-energy pulse-burst laser system for megahertz-rate flow visualization.
作者： Pingfan P. Wu , Richard B. Miles
DOI: 10.1364/OL.25.001639
关键词: Pulse (physics) 、 X-ray laser 、 Shock (fluid dynamics) 、 Optics 、 Laser 、 Particle image velocimetry 、 Velocimetry 、 Flow visualization 、 Amplified spontaneous emission 、 Materials science
摘要: A high-pulse-energy megahertz-repetition-rate Nd:YAG-based pulse-burst laser system has been developed. The can produce a burst of more than 30 pulses, with an average energy per pulse 70 mJ, at up to 1-MHz repetition rate. rate is 9 Hz. Coupled megahertz-framing-rate CCD camera, the frequency-doubled successfully used in visualization shock evolution supersonic flow.
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harvard.edu参考文章(6)
Alan L. Kistler, Fluctuation Measurements in a Supersonic Turbulent Boundary Layer Physics of Fluids. ,vol. 2, pp. 290- 296 ,(1959) , 10.1063/1.1705925
Pingfan Wu, Walter L. Lempert, Richard B. Miles, Megahertz Pulse-Burst Laser and Visualization of Shock-Wave/Boundary-Layer Interaction AIAA Journal. ,vol. 38, pp. 672- 679 ,(2000) , 10.2514/2.1009
C.F. Kaminski, J. Hult, M. Aldén, High repetition rate planar laser induced fluorescence of OH in a turbulent non-premixed flame Applied Physics B. ,vol. 68, pp. 757- 760 ,(1999) , 10.1007/S003400050700
P S Theocaris, A A Serafetinides, N P Andrianopoulos, A high-power multiple ruby laser system for recording dynamic events Journal of Physics E: Scientific Instruments. ,vol. 14, pp. 705- 708 ,(1981) , 10.1088/0022-3735/14/6/012
Jeffrey M. Grace, Repetitively pulsed ruby lasers as light sources for high-speed photography Optical Engineering. ,vol. 37, pp. 2205- 2212 ,(1998) , 10.1117/1.601737
Jonathan M. Huntley, High-speed laser speckle photography. Part 1: repetitively Q-switched ruby laser light source Optical Engineering. ,vol. 33, pp. 1692- 1699 ,(1994) , 10.1117/12.168542