Intense high-contrast femtosecond K-shell X-ray source from laser-driven ar clusters

Chen, L.M. and Liu, F. and Wang, W.M. and Kando, M. and Mao, J.Y. and Zhang, L. and Ma, J.L. and Li, Y. T. and Bulanov, S. V. and Tajima, T. and Kato, Y. and Sheng, Zheng-Ming and Wei, Z.Y. and Zhang, J. (2010) Intense high-contrast femtosecond K-shell X-ray source from laser-driven ar clusters. Physical Review Letters, 104. 215004. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.104.215004)

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Abstract

Bright Ar quasimonochromatic K-shell x ray with very little background has been generated using an Ar clustering gas jet target irradiated with a 30 fs ultrahigh-contrast laser, with a measured flux of 2.2×1011  photons/J into 4π. This intense x-ray source critically depends on the laser contrast and intensity. The optimization of source output with interaction length is addressed. Simulations point to a nonlinear resonant mechanism of electron heating during the early stage of laser interaction, resulting in enhanced x-ray emission. The x-ray pulse duration is expected to be only 10 fs, opening the possibility for single-shot ultrafast keV x-ray imaging applications.

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• Item metadata

  Item type:	Article
  ID code:	44619
  Dates:	Date Event 28 May 2010 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	28 Aug 2013 10:14
  Last modified:	08 Apr 2024 20:41
  Related URLs:	Publisher
  URI:	https://strathprints.strath.ac.uk/id/eprint/44619