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Title: Strong terahertz radiation from relativistic laser interaction with solid density plasmas

Abstract

We report a plasma-based strong THz source generated in intense laser-solid interactions at relativistic intensities >10{sup 18} W/cm{sup 2}. Energies up to 50 {mu}J/sr per THz pulse is observed when the laser pulses are incident onto a copper foil at 67.5 Degree-Sign . The temporal properties of the THz radiation are measured by a single shot, electro-optic sampling method with a chirped laser pulse. The THz radiation is attributed to the self-organized transient fast electron currents formed along the target surface. Such a source allows potential applications in THz nonlinear physics and provides a diagnostic of transient currents generated in intense laser-solid interactions.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;  [1]; ;  [1];  [2];  [3]
  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
  2. (MoE) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China)
  3. Institute of Materials Research and Engineering, A-STAR, 3 Research Link, Singapore 117602 (Singapore)
Publication Date:
OSTI Identifier:
22080402
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 100; Journal Issue: 25; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COPPER; FOILS; INTERACTIONS; LASER RADIATION; LIGHT TRANSMISSION; PLASMA DENSITY; PLASMA DIAGNOSTICS; RELATIVISTIC PLASMA; SOLIDS; SURFACES; THZ RANGE

Citation Formats

Li, Y. T., Li, C., Zhou, M. L., Wang, W. M., Du, F., Ding, W. J., Lin, X. X., Liu, F., Chen, L. M., Ma, J. L., Lu, X., Wang, Z. H., Wei, Z. Y., Sheng, Z. M., Zhang, J., Key Laboratory for Laser Plasmas, and Peng, X. Y. Strong terahertz radiation from relativistic laser interaction with solid density plasmas. United States: N. p., 2012. Web. doi:10.1063/1.4729874.
Li, Y. T., Li, C., Zhou, M. L., Wang, W. M., Du, F., Ding, W. J., Lin, X. X., Liu, F., Chen, L. M., Ma, J. L., Lu, X., Wang, Z. H., Wei, Z. Y., Sheng, Z. M., Zhang, J., Key Laboratory for Laser Plasmas, & Peng, X. Y. Strong terahertz radiation from relativistic laser interaction with solid density plasmas. United States. doi:10.1063/1.4729874.
Li, Y. T., Li, C., Zhou, M. L., Wang, W. M., Du, F., Ding, W. J., Lin, X. X., Liu, F., Chen, L. M., Ma, J. L., Lu, X., Wang, Z. H., Wei, Z. Y., Sheng, Z. M., Zhang, J., Key Laboratory for Laser Plasmas, and Peng, X. Y. Mon . "Strong terahertz radiation from relativistic laser interaction with solid density plasmas". United States. doi:10.1063/1.4729874.
@article{osti_22080402,
title = {Strong terahertz radiation from relativistic laser interaction with solid density plasmas},
author = {Li, Y. T. and Li, C. and Zhou, M. L. and Wang, W. M. and Du, F. and Ding, W. J. and Lin, X. X. and Liu, F. and Chen, L. M. and Ma, J. L. and Lu, X. and Wang, Z. H. and Wei, Z. Y. and Sheng, Z. M. and Zhang, J. and Key Laboratory for Laser Plasmas and Peng, X. Y.},
abstractNote = {We report a plasma-based strong THz source generated in intense laser-solid interactions at relativistic intensities >10{sup 18} W/cm{sup 2}. Energies up to 50 {mu}J/sr per THz pulse is observed when the laser pulses are incident onto a copper foil at 67.5 Degree-Sign . The temporal properties of the THz radiation are measured by a single shot, electro-optic sampling method with a chirped laser pulse. The THz radiation is attributed to the self-organized transient fast electron currents formed along the target surface. Such a source allows potential applications in THz nonlinear physics and provides a diagnostic of transient currents generated in intense laser-solid interactions.},
doi = {10.1063/1.4729874},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 25,
volume = 100,
place = {United States},
year = {2012},
month = {6}
}