[OPTICAL REVIEW Vol. 7, No. 6 (2000) 535-542]
Shockwave Visualization Using Holographic Interferometer
Sung-Hoon BAIK,1 Seung-Kyu PARK,1 Cheol-Jung KIM1 and Soo-Yong KIM2
1Laboratory for Quantum Optics, Korea Atomic Energy Research Institute, Dukjin-Dong 150, Yusong, Taejon 305-353, Rep. of Korea, 2Department of Physics, Korea Advanced Institute of Science and Technology, Yusong, Taejon 305-701, Rep. of Korea
(Received August 3, 2000; Accepted August 22, 2000)
High-speed holographic interferometry was employed to visualize and record shockwave phenomena. We performed three kinds of holographic interferometry for visualization and recording of the propagation of a shockwave: a real-time holographic interferometer with a high-speed framing camera, a real-time holographic interferometer with a high-speed streak camera and a double-pulse laser holographic interferometer with a dual-reference-beam module. The experimental results were compared and their advantages and disadvantages are discussed. The experimental results clearly show the high-speed shockwave propagation and give the feasibility of quantitative interpretation of high-speed gas-dynamics.
Key words : holographic interferometer, flow visualization, shockwave, high-speed recording, streak image