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Proceedings Paper

Free-surface velocity measurements using an optically recording velocity interferometer
Author(s): Jian-xin Lu; Zhao Wang; Jing Liang; Yu-sheng Shan; Chuang-zhi Zhou; Yi-huai Xiang; Ze Lu; Xiu-zhang Tang
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Paper Abstract

An optically recording velocity interferometer system (ORVIS) was developed for the free-surface velocity measurements in the equation of state experiments. The time history of free-surface velocity and the particle velocity in laser deduced shockwaves experiments can be recorded by the electronic streak camera in ORVIS. The interference fringe shifts recorded by the ORVIS is proportional to the Doppler shift of a laser beam induced by being reflected from the back suface of the monitored target. In the experiments, ORVIS got an 179 ps time resolution, and a higher time resolution could be got by minimizing the delay time. The equation of state experiments were carried out on the high power excimer laser system called "Heaven I", the velocity of iron and aluminium was researched.

Paper Details

Date Published: 29 January 2007
PDF: 7 pages
Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62794R (29 January 2007); doi: 10.1117/12.725447
Show Author Affiliations
Jian-xin Lu, China Institute of Atomic Energy (China)
Zhao Wang, China Institute of Atomic Energy (China)
Jing Liang, China Institute of Atomic Energy (China)
Yu-sheng Shan, China Institute of Atomic Energy (China)
Chuang-zhi Zhou, China Institute of Atomic Energy (China)
Yi-huai Xiang, China Institute of Atomic Energy (China)
Ze Lu, China Institute of Atomic Energy (China)
Xiu-zhang Tang, China Institute of Atomic Energy (China)


Published in SPIE Proceedings Vol. 6279:
27th International Congress on High-Speed Photography and Photonics

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