• High Power Laser Science and Engineering
  • Vol. 13, Issue 1, 010000e9 (2025)
Xiangrui Jiang1,2, Debin Zou1,*, Mingyang Yu3, Kaiyuan Feng1..., Xiaohu Yang2, Huanwen Chen1, Lixiang Hu1, Weiquan Wang1, Guobo Zhang2, Fuqiu Shao1, Wenhui Tang2 and Tongpu Yu1|Show fewer author(s)
Author Affiliations
  • 1Department of Physics, National University of Defense Technology, Changsha, China
  • 2Department of Nuclear Science and Technology, National University of Defense Technology, Changsha, China
  • 3College of Engineering Physics, Shenzhen Technology University, Shenzhen, China
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    DOI: 10.1017/hpl.2025.14 Cite this Article Set citation alerts
    Xiangrui Jiang, Debin Zou, Mingyang Yu, Kaiyuan Feng, Xiaohu Yang, Huanwen Chen, Lixiang Hu, Weiquan Wang, Guobo Zhang, Fuqiu Shao, Wenhui Tang, Tongpu Yu, "Interaction of a counter-propagating relativistic laser pair with subwavelength thin solid-density foil," High Power Laser Sci. Eng. 13, 010000e9 (2025) Copy Citation Text show less

    Abstract

    The effect of the polarizations of two counter-propagating relativistic laser pulses interacting with subwavelength thin solid-density foil is investigated. Three-dimensional particle-in-cell simulations and analytical modelling show that the interaction and resulting transverse instability depend strongly on the polarization directions as well as the intensity distribution of the resultant light field in the foil. The left- and right-handed circularly polarized laser pair with the same phase at the common focal spot in the ultrathin foil leads to the strongest distortion of the foil. The fastest growing mode and maximum growth rate depend mainly on the laser intensity. For all polarization and phase-difference combinations, the instability is weakest when the two laser pulses are exactly out of phase at the common focusing point in the foil.
    {Ey,L=E0cos(ω0tk0x),Ey,R=E0cos(ω0t+k0x+Δφ), ((1))

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    Ey=Ey,L+Ey,R=2E0cos(t+Δφ/2)cos(x+Δφ/2). ((2))

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    {Ey,L=E0/2cos(tx),Ez,L=E0/2sin(tx),Ey,R=E0/2cos(t+x+Δφ),Ez,R=E0/2sin(t+x+Δφ). ((3))

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    {Ey=2E0cos(t+Δφ/2)cos(x+Δφ/2),Ez=2E0cos(t+Δφ/2)sin(x+Δφ/2). ((4))

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    If=0T0fpdt=q24mω020T0E2xdt ((5))

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    {γm,RT(κ/2αinωpe/vosc)1/2,γm,ei2(ωpi2ωpe)1/3(κme/mi)1/6, ((6))

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    km=2κωpe/vosc. ((7))

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    Xiangrui Jiang, Debin Zou, Mingyang Yu, Kaiyuan Feng, Xiaohu Yang, Huanwen Chen, Lixiang Hu, Weiquan Wang, Guobo Zhang, Fuqiu Shao, Wenhui Tang, Tongpu Yu, "Interaction of a counter-propagating relativistic laser pair with subwavelength thin solid-density foil," High Power Laser Sci. Eng. 13, 010000e9 (2025)
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