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

L.M.  Chen; F. Liu; W.M.  Wang; M. Kando; J.Y.  Mao; L. Zhang; J.L.  Ma; Y. T. Li; S. V. Bulanov; T. Tajima; Y. Kato; Zheng-Ming Sheng; Z.Y.  Wei; J. Zhang

doi:10.1103/PhysRevLett.104.215004

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

L.M. Chen, F. Liu, W.M. Wang, M. Kando, J.Y. Mao, L. Zhang, J.L. Ma, Y. T. Li, S. V. Bulanov, T. Tajima, Y. Kato, Zheng-Ming Sheng, Z.Y. Wei, J. Zhang

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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.

Original language	English
Article number	215004
Number of pages	4
Journal	Physical Review Letters
Volume	104
DOIs	https://doi.org/10.1103/PhysRevLett.104.215004
Publication status	Published - 28 May 2010

Keywords

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

Access to Document

10.1103/PhysRevLett.104.215004

PhysRevLettFinal published version, 582 KB

http://link.aps.org/doi/10.1103/PhysRevLett.104.215004

Cite this

Chen, L. M., Liu, F., Wang, W. M., Kando, M., Mao, J. Y., Zhang, L., Ma, J. L., Li, Y. T., Bulanov, S. V., Tajima, T., Kato, Y., Sheng, Z-M., Wei, Z. Y., & Zhang, J. (2010). Intense high-contrast femtosecond K-shell X-ray source from laser-driven ar clusters. Physical Review Letters, 104, [215004]. 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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AU - Chen, L.M.

AU - Liu, F.

AU - Wang, W.M.

AU - Kando, M.

AU - Mao, J.Y.

AU - Zhang, L.

AU - Ma, J.L.

AU - Li, Y. T.

AU - Bulanov, S. V.

AU - Tajima, T.

AU - Kato, Y.

AU - Sheng, Zheng-Ming

AU - Wei, Z.Y.

AU - Zhang, J.

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AB - 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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