The sources of super-high energetic electron at relativistic circularly-polarized laser-solid interactions in the presence of large scale pre-plasmas

doi:10.1063/1.4972539

Title: The sources of super-high energetic electron at relativistic circularly-polarized laser-solid interactions in the presence of large scale pre-plasmas

Abstract

Here, the two stage electron acceleration model is extended to investigate the sources of super-hot electrons at intense circularly polarized (CP) laser solid interactions. It is found that in the presence of large scale pre-formed plasmas, super-high energetic electrons can be generated. For laser of intensity 10 ²⁰ W/cm ² and pre-plasma of scale-length 10 μm, the cut-off energy of electrons by CP laser can be as high as 120 MeV compared with 100 MeV by linearly polarized laser. This unexpected acceleration can be also explained by the two-stage acceleration model. The envelop modulation of reflected CP laser is figured out, and a modified scaling law of the maximal-possible energy gain when including the modulation effect is obtained.

Authors:

Wu, D. ^[1]; Krasheninnikov, S. I. ^[2]; Luan, S. X. ^[1]; Yu, W. ^[1]

Chinese Academy of Sciences (CAS), Shanghai (China)
Univ. of California-San Diego, La Jolla, CA (United States)

Publication Date:: 2016-12-22

Research Org.:: Univ. of California, San Diego, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1465376

Alternate Identifier(s):: OSTI ID: 1337434

Grant/Contract Number:: NA0001858

Resource Type:: Accepted Manuscript

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 23; Journal Issue: 12; Journal ID: ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats


                    Wu, D., Krasheninnikov, S. I., Luan, S. X., and Yu, W. The sources of super-high energetic electron at relativistic circularly-polarized laser-solid interactions in the presence of large scale pre-plasmas.  United States: N. p., 2016. 
        Web.  doi:10.1063/1.4972539.

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                    Wu, D., Krasheninnikov, S. I., Luan, S. X., & Yu, W. The sources of super-high energetic electron at relativistic circularly-polarized laser-solid interactions in the presence of large scale pre-plasmas.  United States.  doi:10.1063/1.4972539.

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                    Wu, D., Krasheninnikov, S. I., Luan, S. X., and Yu, W. Thu .  
        "The sources of super-high energetic electron at relativistic circularly-polarized laser-solid interactions in the presence of large scale pre-plasmas".  United States.  doi:10.1063/1.4972539.  https://www.osti.gov/servlets/purl/1465376.

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@article{osti_1465376,

  title        = {The sources of super-high energetic electron at relativistic circularly-polarized laser-solid interactions in the presence of large scale pre-plasmas},

  author       = {Wu, D. and Krasheninnikov, S. I. and Luan, S. X. and Yu, W.},

  abstractNote = {Here, the two stage electron acceleration model is extended to investigate the sources of super-hot electrons at intense circularly polarized (CP) laser solid interactions. It is found that in the presence of large scale pre-formed plasmas, super-high energetic electrons can be generated. For laser of intensity 1020 W/cm2 and pre-plasma of scale-length 10 μm, the cut-off energy of electrons by CP laser can be as high as 120 MeV compared with 100 MeV by linearly polarized laser. This unexpected acceleration can be also explained by the two-stage acceleration model. The envelop modulation of reflected CP laser is figured out, and a modified scaling law of the maximal-possible energy gain when including the modulation effect is obtained.},

  doi          = {10.1063/1.4972539},

  journal      = {Physics of Plasmas},

  number       = 12,

  volume       = 23,

  place        = {United States},

  year         = {2016},

  month        = {12}

}

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DOI: 10.1063/1.4972539

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Works referenced in this record:

Ignition and high gain with ultrapowerful lasers
journal, May 1994

Tabak, Max; Hammer, James; Glinsky, Michael E.
Physics of Plasmas, Vol. 1, Issue 5, p. 1626-1634
DOI: 10.1063/1.870664

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Title: The sources of super-high energetic electron at relativistic circularly-polarized laser-solid interactions in the presence of large scale pre-plasmas

Abstract

Citation Formats

Ignition and high gain with ultrapowerful lasers journal, May 1994

Ignition and high gain with ultrapowerful lasers
journal, May 1994