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High Power Laser Science and Engineering, Volume. 2, Issue 1, 010000e5(2014)

Effects of target pre-heating and expansion on terahertz radiation production from intense laser-solid interactions

X.H. Yuan1,2, Y. Fang1, D.C. Carroll3,4, D.A. MacLellan3, F. Du2, N. Booth4, M. Burza5, M. Chen1, R.J. Gray3, Y.F. Jin1, Y.T. Li2, Y. Liu1, D. Neely4, H. Powell3, G. Scott3, C.-G. Wahlstrom5, J. Zhang1,2, P. McKenna3、*, and and Z.M. Sheng6
Author Affiliations
  • 1Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 3SUPA Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK
  • 4Central Laser Facility, Rutherford Appleton Laboratory, Oxfordshire OX11 0QX, UK
  • 5Department of Physics, Lund University, S-22100 Lund, Sweden
  • 63Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
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    (Color online) Schematic of the experiment layout showing the positions and orientations of the targets, the laser beams, and the THz measurement optics and detector. TPX lens 1, and both targets and beams are in the vacuum sealed by the TPX window. The inset shows a top view of the orientation of the laser beams and targets in closer detail.

    Fig. 1. (Color online) Schematic of the experiment layout showing the positions and orientations of the targets, the laser beams, and the THz measurement optics and detector. TPX lens 1, and both targets and beams are in the vacuum sealed by the TPX window. The inset shows a top view of the orientation of the laser beams and targets in closer detail.

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    (Color online) Typical THz waveforms (from an oscilloscope) as measured with a pyroelectric detector operating in the range 0.3–1 THz. Black: B7 only; red: B8 only; blue: both B7 and B8. The inset shows a reconstructed THz spectrum from a B7-only shot.

    Fig. 2. (Color online) Typical THz waveforms (from an oscilloscope) as measured with a pyroelectric detector operating in the range 0.3–1 THz. Black: B7 only; red: B8 only; blue: both B7 and B8. The inset shows a reconstructed THz spectrum from a B7-only shot.

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    (Color online) HELIOS simulation results. (a) and (c) Temperature and electron density profiles at the front surface of a carbon target at given simulation times, driven by the laser (B7) ASE only. (b) and (d) Corresponding temperature and density profiles for the same target driven by the laser (B7) ASE plus proton heating driven by B8. See the main text for details.

    Fig. 3. (Color online) HELIOS simulation results. (a) and (c) Temperature and electron density profiles at the front surface of a carbon target at given simulation times, driven by the laser (B7) ASE only. (b) and (d) Corresponding temperature and density profiles for the same target driven by the laser (B7) ASE plus proton heating driven by B8. See the main text for details.

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    X.H. Yuan, Y. Fang, D.C. Carroll, D.A. MacLellan, F. Du, N. Booth, M. Burza, M. Chen, R.J. Gray, Y.F. Jin, Y.T. Li, Y. Liu, D. Neely, H. Powell, G. Scott, C.-G. Wahlstrom, J. Zhang, P. McKenna, and Z.M. Sheng. Effects of target pre-heating and expansion on terahertz radiation production from intense laser-solid interactions[J]. High Power Laser Science and Engineering, 2014, 2(1): 010000e5

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    Paper Information

    Special Issue: LARGE SCALE LASER AND PLASMA ACCELERATION

    Received: Feb. 8, 2014

    Accepted: Feb. 8, 2014

    Published Online: Dec. 26, 2014

    The Author Email: P. McKenna (paul.mckenna@strath.ac.uk)

    DOI:10.1017/hpl.2014.7

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology