Subnanosecond optical diagnostics of laser-material interaction and dynamic microstructure of materials

Dennis L. Paisley; David B. Stahl

doi:10.1117/12.145717

1 January 1993 Subnanosecond optical diagnostics of laser-material interaction and dynamic microstructure of materials

Dennis L. Paisley, David B. Stahl

Proceedings Volume 1801, 20th International Congress on High Speed Photography and Photonics; (1993) https://doi.org/10.1117/12.145717
Event: 20th International Congress on High Speed Photography and Photonics, 1992, Victoria, BC, Canada

Abstract

Several optical diagnostic techniques are used to evaluate the dynamic response of materials to intense dynamic loading and unloading, high stress and strain, and pressure. Velocity interferometry and electronic streak photography, each with sub-nanosecond time resolution, are used to record dynamic material response. Laser-launched flat plates are accelerated to 10¹² m/s² with terminal velocities > 5 km/s. By impacting these plates into target samples, high strain rates (10⁸ sec^-1) and pressures > 100 GPa have been generated for a duration of 0.8 - 5 nanoseconds. The efficacy and limitations of each technique are detailed and applications to other fields discussed.

Citation Download Citation

Dennis L. Paisley and David B. Stahl "Subnanosecond optical diagnostics of laser-material interaction and dynamic microstructure of materials", Proc. SPIE 1801, 20th International Congress on High Speed Photography and Photonics, (1 January 1993); https://doi.org/10.1117/12.145717

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