Long pulse laser driven shock wave loading for dynamic materials experiments

S. N. Luo, S. R. Greenfield, D. L. Paisley, R. P. Johnson, T. Shimada, D. D. Byler, E. N. Loomis, S. N. DiGiacomo, B. M. Patterson, K. J. McClellan, R. M. Dickerson, Pedro Peralta, A. C. Koskelo, D. L. Tonks

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present two laser driven shock wave loading techniques utilizing long pulse lasers, laser-launched flyer plate and confined laser ablation, and their applications to shock physics. The full width at half maximum of the drive laser pulse ranges from 100 ns to 10 μs, and its energy, from 10 J to 1000 J. The drive pulse is smoothed with a holographic optical element to achieve spatial homogeneity in loading. We characterize the flyer plate during flight and dynamically loaded target with temporally and spatially resolved diagnostics. The long duration and high energy of the drive pulse allow for shockless acceleration of thick flyer plates with 8 mm diameter and 0.1-2 mm thickness. With transient imaging displacement interferometry and line-imaging velocimetry, we demonstrate that the planarity (bow and tilt) of the loading is within 2-7 mrad (with an average of 4±1 mrad), similar to that in conventional techniques including gas gun loading. Plasma heating of target is negligible in particular when a plasma shield is adopted. For flyer plate loading, supported shock waves can be achieved. Temporal shaping of the drive pulse in confined laser ablation enables flexible loading, e.g., quasi-isentropic, Taylor-wave, and off-Hugoniot loading. These dynamic loading techniques using long pulse lasers (0.1-10 μs) along with short pulse lasers (1-10 ns) can be an accurate, versatile and efficient complement to conventional shock wave loading for investigating such dynamic responses of materials as Hugoniot elastic limit, plasticity, spall, shock roughness, equation of state, phase transition, and metallurgical characteristics of shock-recovered samples, in a wide range of strain rates and pressures at meso- and macroscopic scales.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7005
DOIs
StatePublished - 2008
EventHigh-Power Laser Ablation VII - Taos, NM, United States
Duration: Apr 20 2008Apr 24 2008

Other

OtherHigh-Power Laser Ablation VII
CountryUnited States
CityTaos, NM
Period4/20/084/24/08

Fingerprint

Shock waves
shock waves
Laser pulses
pulses
lasers
Experiments
Laser ablation
shock
laser ablation
Plasma guns
Holographic optical elements
Plasma heating
Imaging techniques
gas guns
holographic optical elements
Lasers
plasma heating
Full width at half maximum
Equations of state
Interferometry

Keywords

  • Confined ablation
  • Flyer plate
  • Long pulse laser
  • Off-Hugoniot
  • Planarity
  • Quasi-isentropic
  • Shock waves

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Luo, S. N., Greenfield, S. R., Paisley, D. L., Johnson, R. P., Shimada, T., Byler, D. D., ... Tonks, D. L. (2008). Long pulse laser driven shock wave loading for dynamic materials experiments. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7005). [700514] https://doi.org/10.1117/12.782206

Long pulse laser driven shock wave loading for dynamic materials experiments. / Luo, S. N.; Greenfield, S. R.; Paisley, D. L.; Johnson, R. P.; Shimada, T.; Byler, D. D.; Loomis, E. N.; DiGiacomo, S. N.; Patterson, B. M.; McClellan, K. J.; Dickerson, R. M.; Peralta, Pedro; Koskelo, A. C.; Tonks, D. L.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7005 2008. 700514.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Luo, SN, Greenfield, SR, Paisley, DL, Johnson, RP, Shimada, T, Byler, DD, Loomis, EN, DiGiacomo, SN, Patterson, BM, McClellan, KJ, Dickerson, RM, Peralta, P, Koskelo, AC & Tonks, DL 2008, Long pulse laser driven shock wave loading for dynamic materials experiments. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7005, 700514, High-Power Laser Ablation VII, Taos, NM, United States, 4/20/08. https://doi.org/10.1117/12.782206
Luo SN, Greenfield SR, Paisley DL, Johnson RP, Shimada T, Byler DD et al. Long pulse laser driven shock wave loading for dynamic materials experiments. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7005. 2008. 700514 https://doi.org/10.1117/12.782206
Luo, S. N. ; Greenfield, S. R. ; Paisley, D. L. ; Johnson, R. P. ; Shimada, T. ; Byler, D. D. ; Loomis, E. N. ; DiGiacomo, S. N. ; Patterson, B. M. ; McClellan, K. J. ; Dickerson, R. M. ; Peralta, Pedro ; Koskelo, A. C. ; Tonks, D. L. / Long pulse laser driven shock wave loading for dynamic materials experiments. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7005 2008.
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AU - Luo, S. N.

AU - Greenfield, S. R.

AU - Paisley, D. L.

AU - Johnson, R. P.

AU - Shimada, T.

AU - Byler, D. D.

AU - Loomis, E. N.

AU - DiGiacomo, S. N.

AU - Patterson, B. M.

AU - McClellan, K. J.

AU - Dickerson, R. M.

AU - Peralta, Pedro

AU - Koskelo, A. C.

AU - Tonks, D. L.

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N2 - We present two laser driven shock wave loading techniques utilizing long pulse lasers, laser-launched flyer plate and confined laser ablation, and their applications to shock physics. The full width at half maximum of the drive laser pulse ranges from 100 ns to 10 μs, and its energy, from 10 J to 1000 J. The drive pulse is smoothed with a holographic optical element to achieve spatial homogeneity in loading. We characterize the flyer plate during flight and dynamically loaded target with temporally and spatially resolved diagnostics. The long duration and high energy of the drive pulse allow for shockless acceleration of thick flyer plates with 8 mm diameter and 0.1-2 mm thickness. With transient imaging displacement interferometry and line-imaging velocimetry, we demonstrate that the planarity (bow and tilt) of the loading is within 2-7 mrad (with an average of 4±1 mrad), similar to that in conventional techniques including gas gun loading. Plasma heating of target is negligible in particular when a plasma shield is adopted. For flyer plate loading, supported shock waves can be achieved. Temporal shaping of the drive pulse in confined laser ablation enables flexible loading, e.g., quasi-isentropic, Taylor-wave, and off-Hugoniot loading. These dynamic loading techniques using long pulse lasers (0.1-10 μs) along with short pulse lasers (1-10 ns) can be an accurate, versatile and efficient complement to conventional shock wave loading for investigating such dynamic responses of materials as Hugoniot elastic limit, plasticity, spall, shock roughness, equation of state, phase transition, and metallurgical characteristics of shock-recovered samples, in a wide range of strain rates and pressures at meso- and macroscopic scales.

AB - We present two laser driven shock wave loading techniques utilizing long pulse lasers, laser-launched flyer plate and confined laser ablation, and their applications to shock physics. The full width at half maximum of the drive laser pulse ranges from 100 ns to 10 μs, and its energy, from 10 J to 1000 J. The drive pulse is smoothed with a holographic optical element to achieve spatial homogeneity in loading. We characterize the flyer plate during flight and dynamically loaded target with temporally and spatially resolved diagnostics. The long duration and high energy of the drive pulse allow for shockless acceleration of thick flyer plates with 8 mm diameter and 0.1-2 mm thickness. With transient imaging displacement interferometry and line-imaging velocimetry, we demonstrate that the planarity (bow and tilt) of the loading is within 2-7 mrad (with an average of 4±1 mrad), similar to that in conventional techniques including gas gun loading. Plasma heating of target is negligible in particular when a plasma shield is adopted. For flyer plate loading, supported shock waves can be achieved. Temporal shaping of the drive pulse in confined laser ablation enables flexible loading, e.g., quasi-isentropic, Taylor-wave, and off-Hugoniot loading. These dynamic loading techniques using long pulse lasers (0.1-10 μs) along with short pulse lasers (1-10 ns) can be an accurate, versatile and efficient complement to conventional shock wave loading for investigating such dynamic responses of materials as Hugoniot elastic limit, plasticity, spall, shock roughness, equation of state, phase transition, and metallurgical characteristics of shock-recovered samples, in a wide range of strain rates and pressures at meso- and macroscopic scales.

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KW - Off-Hugoniot

KW - Planarity

KW - Quasi-isentropic

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