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

Journal Article · · Applied Optics
DOI:https://doi.org/10.1364/AO.52.007791· OSTI ID:1240062
 [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)
+ Show Author Affiliations

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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1240062
Report Number(s):
LLNL-JRNL-635377; APOPAI
Journal Information:
Applied Optics, Vol. 52, Issue 32; ISSN 0003-6935
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Cited By (2)

Scaled experiments of explosions in cavities journal May 2016
Scaled experiments on cavity confined explosions in limestone and poly(methyl methacrylate) journal September 2019

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71 CLASSICAL AND QUANTUMM MECHANICS
GENERAL PHYSICS
fiber optics sensor
combustion diagnostics
pressure measurement