Multiple quasi-monoenergetic electron beams from laser-wakefield acceleration with spatially structured laser pulse

Y. Ma; L. M. Chen; M. H. Li; Y. F. Li; J. G. Wang; M. Z. Tao; Y. J. Han; J. R. Zhao; K. Huang; W. C. Yan; D. Z. Li; Z. Y. Chen; J. L. Ma; Y. T. Li; Z. M. Sheng; J. Zhang

doi:10.1063/1.4927584

Multiple quasi-monoenergetic electron beams from laser-wakefield acceleration with spatially structured laser pulse

Y. Ma, L. M. Chen^*, M. H. Li, Y. F. Li, J. G. Wang, M. Z. Tao, Y. J. Han, J. R. Zhao, K. Huang, W. C. Yan, D. Z. Li, Z. Y. Chen, J. L. Ma, Y. T. Li, Z. M. Sheng, J. Zhang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

By adjusting the focus geometry of a spatially structured laser pulse, single, double, and treble quasi-monoenergetic electron beams were generated, respectively, in laser-wakefield acceleration. Single electron beam was produced as focusing the laser pulse to a single spot. While focusing the laser pulse to two spots that are approximately equal in energy and size and intense enough to form their own filaments, two electron beams were produced. Moreover, with a proper distance between those two focal spots, three electron beams emerged with a certain probability owing to the superposition of the diffractions of those two spots. The energy spectra of the multiple electron beams are quasi-monoenergetic, which are different from that of the large energy spread beams produced due to the longitudinal multiple-injection in the single bubble.

Original language	English
Article number	083102
Number of pages	6
Journal	Physics of Plasmas
Volume	22
Issue number	8
DOIs	https://doi.org/10.1063/1.4927584
Publication status	Published - 4 Aug 2015

Keywords

quasi-monoenergetic electron beams
laser-wakefield acceleration
laser pulses
electron beams

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10.1063/1.4927584

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Ma, Y., Chen, L. M., Li, M. H., Li, Y. F., Wang, J. G., Tao, M. Z., Han, Y. J., Zhao, J. R., Huang, K., Yan, W. C., Li, D. Z., Chen, Z. Y., Ma, J. L., Li, Y. T., Sheng, Z. M., & Zhang, J. (2015). Multiple quasi-monoenergetic electron beams from laser-wakefield acceleration with spatially structured laser pulse. Physics of Plasmas, 22(8), Article 083102. https://doi.org/10.1063/1.4927584

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title = "Multiple quasi-monoenergetic electron beams from laser-wakefield acceleration with spatially structured laser pulse",

abstract = "By adjusting the focus geometry of a spatially structured laser pulse, single, double, and treble quasi-monoenergetic electron beams were generated, respectively, in laser-wakefield acceleration. Single electron beam was produced as focusing the laser pulse to a single spot. While focusing the laser pulse to two spots that are approximately equal in energy and size and intense enough to form their own filaments, two electron beams were produced. Moreover, with a proper distance between those two focal spots, three electron beams emerged with a certain probability owing to the superposition of the diffractions of those two spots. The energy spectra of the multiple electron beams are quasi-monoenergetic, which are different from that of the large energy spread beams produced due to the longitudinal multiple-injection in the single bubble.",

keywords = "quasi-monoenergetic electron beams, laser-wakefield acceleration, laser pulses, electron beams",

author = "Y. Ma and Chen, {L. M.} and Li, {M. H.} and Li, {Y. F.} and Wang, {J. G.} and Tao, {M. Z.} and Han, {Y. J.} and Zhao, {J. R.} and K. Huang and Yan, {W. C.} and Li, {D. Z.} and Chen, {Z. Y.} and Ma, {J. L.} and Li, {Y. T.} and Sheng, {Z. M.} and J. Zhang",

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AU - Ma, Y.

AU - Chen, L. M.

AU - Li, M. H.

AU - Li, Y. F.

AU - Wang, J. G.

AU - Tao, M. Z.

AU - Han, Y. J.

AU - Zhao, J. R.

AU - Huang, K.

AU - Yan, W. C.

AU - Li, D. Z.

AU - Chen, Z. Y.

AU - Ma, J. L.

AU - Li, Y. T.

AU - Sheng, Z. M.

AU - Zhang, J.

PY - 2015/8/4

Y1 - 2015/8/4

N2 - By adjusting the focus geometry of a spatially structured laser pulse, single, double, and treble quasi-monoenergetic electron beams were generated, respectively, in laser-wakefield acceleration. Single electron beam was produced as focusing the laser pulse to a single spot. While focusing the laser pulse to two spots that are approximately equal in energy and size and intense enough to form their own filaments, two electron beams were produced. Moreover, with a proper distance between those two focal spots, three electron beams emerged with a certain probability owing to the superposition of the diffractions of those two spots. The energy spectra of the multiple electron beams are quasi-monoenergetic, which are different from that of the large energy spread beams produced due to the longitudinal multiple-injection in the single bubble.

AB - By adjusting the focus geometry of a spatially structured laser pulse, single, double, and treble quasi-monoenergetic electron beams were generated, respectively, in laser-wakefield acceleration. Single electron beam was produced as focusing the laser pulse to a single spot. While focusing the laser pulse to two spots that are approximately equal in energy and size and intense enough to form their own filaments, two electron beams were produced. Moreover, with a proper distance between those two focal spots, three electron beams emerged with a certain probability owing to the superposition of the diffractions of those two spots. The energy spectra of the multiple electron beams are quasi-monoenergetic, which are different from that of the large energy spread beams produced due to the longitudinal multiple-injection in the single bubble.

KW - quasi-monoenergetic electron beams

KW - laser-wakefield acceleration

KW - laser pulses

KW - electron beams

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DO - 10.1063/1.4927584

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JO - Physics of Plasmas

JF - Physics of Plasmas

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M1 - 083102

ER -

Multiple quasi-monoenergetic electron beams from laser-wakefield acceleration with spatially structured laser pulse

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