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30 September 2013 Special high speed imaging techniques using phase, aperture, and polarization effects
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The present paper gives an overview on some special techniques for high speed video recording used and investigated in our department for observing the behaviour of transparent media under high temperature, pressure and stress conditions. Such techniques are shadowgraph and schlieren imaging for objects in gaseous environment, and cross polarization techniques for transparent liquids and solid bodies. The examples shown are derived from investigations of exploding conductors and impact studies on glass, plastic and gelatine. Further some concepts for the extraction of slides along the optical axis by decreasing the depth of field using ring apertures are discussed in short.
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Wenjing Zhao, Daniel C. Skaloud, Sascha Kutz, Hendrik Rothe, and Cornelius F. Hahlweg "Special high speed imaging techniques using phase, aperture, and polarization effects", Proc. SPIE 8842, Novel Optical Systems Design and Optimization XVI, 884208 (30 September 2013);

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