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Title: Characterization of laser-driven shock waves in solids using a fiber optic pressure probe

Measurement of laser-driven shock wave pressure in solid blocks of polymethyl methacrylate is demonstrated using fiber optic pressure probes. Three probes based on a fiber Fabry–Perot, fiber Bragg grating, and interferometric fiber tip sensor are tested and compared. Shock waves are generated using a high-power laser focused onto a thin foil target placed in close proximity to the test blocks. The fiber Fabry–Perot sensor appears capable of resolving the shock front with a rise time of 91 ns. As a result, the peak pressure is estimated, using a separate shadowgraphy measurement, to be 3.4 GPa.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [2] ;  [2]
  1. Naval Research Lab., Washington, DC (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-635377
Journal ID: ISSN 0003-6935; APOPAI
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Applied Optics
Additional Journal Information:
Journal Volume: 52; Journal Issue: 32; Journal ID: ISSN 0003-6935
Publisher:
Optical Society of America (OSA)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUMM MECHANICS, GENERAL PHYSICS; fiber optics sensor; combustion diagnostics; pressure measurement
OSTI Identifier:
1240062

Cranch, Geoffrey A., Lunsford, Robert, Grun, Jacob, Weaver, James, Compton, Steve, May, Mark, and Kostinski, Natalie. Characterization of laser-driven shock waves in solids using a fiber optic pressure probe. United States: N. p., Web. doi:10.1364/AO.52.007791.
Cranch, Geoffrey A., Lunsford, Robert, Grun, Jacob, Weaver, James, Compton, Steve, May, Mark, & Kostinski, Natalie. Characterization of laser-driven shock waves in solids using a fiber optic pressure probe. United States. doi:10.1364/AO.52.007791.
Cranch, Geoffrey A., Lunsford, Robert, Grun, Jacob, Weaver, James, Compton, Steve, May, Mark, and Kostinski, Natalie. 2013. "Characterization of laser-driven shock waves in solids using a fiber optic pressure probe". United States. doi:10.1364/AO.52.007791. https://www.osti.gov/servlets/purl/1240062.
@article{osti_1240062,
title = {Characterization of laser-driven shock waves in solids using a fiber optic pressure probe},
author = {Cranch, Geoffrey A. and Lunsford, Robert and Grun, Jacob and Weaver, James and Compton, Steve and May, Mark and Kostinski, Natalie},
abstractNote = {Measurement of laser-driven shock wave pressure in solid blocks of polymethyl methacrylate is demonstrated using fiber optic pressure probes. Three probes based on a fiber Fabry–Perot, fiber Bragg grating, and interferometric fiber tip sensor are tested and compared. Shock waves are generated using a high-power laser focused onto a thin foil target placed in close proximity to the test blocks. The fiber Fabry–Perot sensor appears capable of resolving the shock front with a rise time of 91 ns. As a result, the peak pressure is estimated, using a separate shadowgraphy measurement, to be 3.4 GPa.},
doi = {10.1364/AO.52.007791},
journal = {Applied Optics},
number = 32,
volume = 52,
place = {United States},
year = {2013},
month = {11}
}