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Title: On-shot characterization of single plasma mirror temporal contrast improvement

Abstract

Here, we report on the setup and commissioning of a compact recollimating single plasma mirror (PM) for temporal contrast enhancement at the Draco 150 TW laser during laser-proton acceleration experiments. The temporal contrast with and without PM is characterized single-shot by means of self-referenced spectral interferometry with extended time excursion at unprecedented dynamic and temporal range. This allows for the first single-shot measurement of the PM trigger point, which is interesting for the quantitative investigation of the complex pre-plasma formation process at the surface of the target used for proton acceleration. As a demonstration of high contrast laser plasma interaction we present proton acceleration results with ultra-thin liquid crystal targets of ~ 1 μm down to 10 nm thickness. Focus scans of different target thicknesses show that highest proton energies are reached for the thinnest targets at best focus. This indicates that the contrast enhancement is effective such that the acceleration process is not limited by target pre-expansion induced by laser light preceding the main laser pulse.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [2]; ORCiD logo [3]; ORCiD logo [1];  [4]; ORCiD logo [5];  [2]; ORCiD logo [1];  [6]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [1];  [2]
  1. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany); Technische Univ. Dresden, Dresden (Germany)
  2. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany)
  3. The Ohio State Univ., Columbus, OH (United States)
  4. iTEOX, Gometz-le-Chatel (France)
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Friedrich-Schiller-Univ. Jena, Jena (Germany)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1474337
Report Number(s):
LLNL-JRNL-758059
Journal ID: ISSN 0741-3335; 945980
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Plasma Physics and Controlled Fusion
Additional Journal Information:
Journal Volume: 60; Journal Issue: 5; Journal ID: ISSN 0741-3335
Publisher:
IOP Science
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; plasma mirrors; laser-particle acceleration; laser-proton acceleration; laser-produced plasmas; laser diagnostic

Citation Formats

Obst, L., Metzkes-Ng, J., Bock, S., Cochran, G. E., Cowan, T. E., Oksenhendler, T., Poole, P. L., Prencipe, I., Rehwald, M., Rödel, C., Schlenvoigt, H-P, Schramm, U., Schumacher, D. W., Ziegler, T., and Zeil, K. On-shot characterization of single plasma mirror temporal contrast improvement. United States: N. p., 2018. Web. doi:10.1088/1361-6587/aab3bb.
Obst, L., Metzkes-Ng, J., Bock, S., Cochran, G. E., Cowan, T. E., Oksenhendler, T., Poole, P. L., Prencipe, I., Rehwald, M., Rödel, C., Schlenvoigt, H-P, Schramm, U., Schumacher, D. W., Ziegler, T., & Zeil, K. On-shot characterization of single plasma mirror temporal contrast improvement. United States. https://doi.org/10.1088/1361-6587/aab3bb
Obst, L., Metzkes-Ng, J., Bock, S., Cochran, G. E., Cowan, T. E., Oksenhendler, T., Poole, P. L., Prencipe, I., Rehwald, M., Rödel, C., Schlenvoigt, H-P, Schramm, U., Schumacher, D. W., Ziegler, T., and Zeil, K. Thu . "On-shot characterization of single plasma mirror temporal contrast improvement". United States. https://doi.org/10.1088/1361-6587/aab3bb. https://www.osti.gov/servlets/purl/1474337.
@article{osti_1474337,
title = {On-shot characterization of single plasma mirror temporal contrast improvement},
author = {Obst, L. and Metzkes-Ng, J. and Bock, S. and Cochran, G. E. and Cowan, T. E. and Oksenhendler, T. and Poole, P. L. and Prencipe, I. and Rehwald, M. and Rödel, C. and Schlenvoigt, H-P and Schramm, U. and Schumacher, D. W. and Ziegler, T. and Zeil, K.},
abstractNote = {Here, we report on the setup and commissioning of a compact recollimating single plasma mirror (PM) for temporal contrast enhancement at the Draco 150 TW laser during laser-proton acceleration experiments. The temporal contrast with and without PM is characterized single-shot by means of self-referenced spectral interferometry with extended time excursion at unprecedented dynamic and temporal range. This allows for the first single-shot measurement of the PM trigger point, which is interesting for the quantitative investigation of the complex pre-plasma formation process at the surface of the target used for proton acceleration. As a demonstration of high contrast laser plasma interaction we present proton acceleration results with ultra-thin liquid crystal targets of ~ 1 μm down to 10 nm thickness. Focus scans of different target thicknesses show that highest proton energies are reached for the thinnest targets at best focus. This indicates that the contrast enhancement is effective such that the acceleration process is not limited by target pre-expansion induced by laser light preceding the main laser pulse.},
doi = {10.1088/1361-6587/aab3bb},
journal = {Plasma Physics and Controlled Fusion},
number = 5,
volume = 60,
place = {United States},
year = {Thu Mar 22 00:00:00 EDT 2018},
month = {Thu Mar 22 00:00:00 EDT 2018}
}

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Works referencing / citing this record:

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Single-shot fourth-order autocorrelator
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All-optical structuring of laser-driven proton beam profiles
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All-optical structuring of laser-driven proton beam profiles
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Spectral and spatial shaping of laser-driven proton beams using a pulsed high-field magnet beamline
preprint, January 2019