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  • Accepted Manuscript: Channel optimization of high-intensity laser beams in millimeter-scale plasmas

This content will become publicly available on April 20, 2019

Title: Channel optimization of high-intensity laser beams in millimeter-scale plasmas

Channeling experiments were performed at the OMEGA EP facility using relativistic intensity (> 10 18 W/cm 2) kilojoule laser pulses through large density scale length (~ 390-570 μm) laser-produced plasmas, demonstrating the effects of the pulse’s focal location and intensity as well as the plasma’s temperature on the resulting channel formation. The results show deeper channeling when focused into hot plasmas and at lower densities as expected. However, contrary to previous large scale particle-in-cell studies, the results also indicate deeper penetration by short (10 ps), intense pulses compared to their longer duration equivalents. To conclude, this new observation has many implications for future laser-plasma research in the relativistic regime.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [8]
+ Show Author Affiliations
  1. Univ. of Oxford (United Kingdom). Dept. of Physics and Clarendon Lab.; Univ. of Bordeaux-CNRS-CEA (France). Intensive Lasers Center and Applications (CELIA)
  2. Univ. of Oxford (United Kingdom). Dept. of Physics and Clarendon Lab.
  3. Univ. of Oxford (United Kingdom). Dept. of Physics and Clarendon Lab.; Science and Technology Facilities Council (STFC) Rutherford Appleton Lab. (RAL), Chilton (United Kingdom)
  4. Osaka Univ. (Japan). Graduate School of Engineering
  5. Osaka Univ. (Japan). Graduate School of Engineering; Horia Hulubei National Inst. of Physics and Nuclear Engineering (IFIN-HH), Magurele (Romania). Extreme Light Infrastructure-Nuclear Physics (ELI-NP)
  6. Univ. of California, San Diego, CA (United States). Dept. of Mechanical and Aerospace Engineering
  7. General Atomics, San Diego, CA (United States)
  8. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
  9. Univ. of Rochester, NY (United States). Dept. of Physics and Astronomy
Publication Date:
Report Number(s):
2016-261, 1393
Journal ID: ISSN 2470-0045; PLEEE8; 2016-261, 1393, 2351
Grant/Contract Number:
NA0001944; SC0014666; 15H05751-70171741; 633053; EP/L00023711
Type:
Accepted Manuscript
Journal Name:
Physical Review E
Additional Journal Information:
Journal Volume: 97; Journal Issue: 4; Journal ID: ISSN 2470-0045
Publisher:
American Physical Society (APS)
Research Org:
Univ. of Rochester, NY (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21); New York State Energy Research and Development Authority (NYSERDA); Univ. of Chicago, IL (United States); Japan Society for the Promotion of Science (JSPS); OSIRIS consortium; Advanced Research Computing High End Resource (ARCHER) National Supercomputing Service (United Kingdom); EUROfusion Consortium; European Atomic Energy Community (Euratom); European Commission (EC); Plasma High-end Computing (HEC) Consortium; Engineering and Physical Sciences Research Council (EPSRC)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; filamentation in plasmas; high intensity laser-plasma interactions; high-energy-density plasmas; intertial confinement fusion; ponderomotive effects; self-focusing and filamentation in plasmas; near-critical and underdense plasmas; imaging
OSTI Identifier:
1434591
Alternate Identifier(s):
OSTI ID: 1434182