Picosecond Time-Resolved X-ray Diffraction from a Laser-Shocked Germanium Crystal above Hugoniot Elastic Limit

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Published 10 August 2004 Copyright (c) 2004 The Japan Society of Applied Physics
, , Citation Kazutaka G. Nakamura et al 2004 Jpn. J. Appl. Phys. 43 5477 DOI 10.1143/JJAP.43.5477

1347-4065/43/8R/5477

Abstract

Picosecond time-resolved X-ray diffraction has been performed on a 300-ps laser-irradiated germanium crystal at 1.2 GW/cm2. Lattice deformation due to shock compression and the propagation of shock waves are directly observed. The observed lattice compression is 4.3% at maximum, which is higher than that at the Hugoniot elastic limit (HEL). The data suggest that the germanium-crystal lattice behaves elastically under shock compression at 7.5 GPa (above HEL) for 27 ps.

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10.1143/JJAP.43.5477