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Title: Sub-100 ps laser-driven dynamic compression of solid deuterium with a ∼40 μJ laser pulse

We dynamically compress solid deuterium over <100 ps from initial pressures of 22 GPa to 55 GPa, to final pressures as high as 71 GPa, with <40 μJ of pulse energy. At 25 GPa initial pressure, we measure compression wave speeds consistent with quasi-isentropic compression and a 24% increase in density. The laser drive energy per unit density change is 10{sup 9} times smaller than it is for recent longer (∼30 ns) time scale compression experiments. This suggests that, for a given final density, dynamic compression of hydrogen might be achieved using orders of magnitude lower laser energy than currently used.
Authors:
; ; ;  [1] ;  [2]
  1. Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  2. 2Geophysical Laboratory, Carnegie Institute of Washington, Washington, DC 20015 (United States)
Publication Date:
OSTI Identifier:
22311073
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPRESSION; CURRENTS; DEUTERIUM; HYDROGEN; ISENTROPIC PROCESSES; LASER RADIATION; PRESSURE RANGE GIGA PA; SOLIDS