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Chapter and Conference Paper
Carrier Dependent Stability of a Semiconductor Lattice Measured with Femtosecond X-ray Diffraction
The melting dynamics of laser excited InSb have been studied with femtosecond x-ray diffraction. These measurements have allowed us to characterize the atomic motion occurring during the initial stages of a ph...
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Article
High-speed visualization, a powerful diagnostic tool for microactuators – retrospect and prospect
A comprehensive testing of microactuators is decisive (i) to prove the workability, (ii) to characterize the output parameters, (iii) to provide kinematic and temperature data for a revaluation of numerical m...
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Article
The puzzle of whip cracking – uncovered by a correlation of whip-tip kinematics with shock wave emission
During whip cracking the whip-tip reaches a supersonic velocity for a period of about 1.2 ms, thereby emitting a head wave with a parabolic-shaped geometry. A detailed study of this mechanism which encompasse...
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Article
Flash lighting instrumentation for color schlieren shock wave photography
Single-shot color schlieren photography of supersonic flow phenomena requires a technically complex flash light source. In particular, it should be of ultrashort duration to minimize motion blur, of high inten...
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Article
August Toepler — The first who visualized shock waves
The scientific investigation of the nature of shock waves started 130 years ago with the advent of the schlieren method which was developed in the period 1859–1864 by August Toepler. At the very beginning appl...