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Title: Ultrafast high strain rate acoustic wave measurements at high static pressure in a diamond anvil cell

Abstract

We have used sub-picosecond laser pulses to launch ultra-high strain rate ({approx} 10{sup 9} s{sup -1}) nonlinear acoustic waves into a 4:1 methanol-ethanol pressure medium which has been precompressed in a standard diamond anvil cell. Using ultrafast interferometry, we have characterized acoustic wave propagation into the pressure medium at static compression up to 24 GPa. We find that the velocity is dependent on the incident laser fluence, demonstrating a nonlinear acoustic response which may result in shock wave behavior. We compare our results with low strain, low strain-rate acoustic data. This technique provides controlled access to regions of thermodynamic phase space that are otherwise difficult to obtain.

Authors:
; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
944361
Report Number(s):
LLNL-JRNL-401062
Journal ID: ISSN 0003-6951; APPLAB; TRN: US200902%%722
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 92; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACOUSTICS; COMPRESSION; INTERFEROMETRY; LASERS; PHASE SPACE; SHOCK WAVES; STRAIN RATE; THERMODYNAMICS; VELOCITY; WAVE PROPAGATION

Citation Formats

Armstrong, M, Crowhurst, J, Reed, E, and Zaug, J. Ultrafast high strain rate acoustic wave measurements at high static pressure in a diamond anvil cell. United States: N. p., 2008. Web. doi:10.1063/1.2898222.
Armstrong, M, Crowhurst, J, Reed, E, & Zaug, J. Ultrafast high strain rate acoustic wave measurements at high static pressure in a diamond anvil cell. United States. https://doi.org/10.1063/1.2898222
Armstrong, M, Crowhurst, J, Reed, E, and Zaug, J. Mon . "Ultrafast high strain rate acoustic wave measurements at high static pressure in a diamond anvil cell". United States. https://doi.org/10.1063/1.2898222. https://www.osti.gov/servlets/purl/944361.
@article{osti_944361,
title = {Ultrafast high strain rate acoustic wave measurements at high static pressure in a diamond anvil cell},
author = {Armstrong, M and Crowhurst, J and Reed, E and Zaug, J},
abstractNote = {We have used sub-picosecond laser pulses to launch ultra-high strain rate ({approx} 10{sup 9} s{sup -1}) nonlinear acoustic waves into a 4:1 methanol-ethanol pressure medium which has been precompressed in a standard diamond anvil cell. Using ultrafast interferometry, we have characterized acoustic wave propagation into the pressure medium at static compression up to 24 GPa. We find that the velocity is dependent on the incident laser fluence, demonstrating a nonlinear acoustic response which may result in shock wave behavior. We compare our results with low strain, low strain-rate acoustic data. This technique provides controlled access to regions of thermodynamic phase space that are otherwise difficult to obtain.},
doi = {10.1063/1.2898222},
url = {https://www.osti.gov/biblio/944361}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = ,
volume = 92,
place = {United States},
year = {2008},
month = {2}
}

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