Transmission characteristics of Bessel–Gaussian vortex beams propagating along both longitudinal and transverse directions in a subway tunnel
作者: Xiaohui WangYingxiong Song
作者单位: 1Shanghai University
2Huaiyin Institute of Technology
刊名: Optical Engineering, 2018, Vol.57 (2), pp.024105-024105
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.57.2.024105
关键词: Vortex beamsOrbital angular momentumOAM mode probability spectrumSubway tunnel
原始语种摘要: By exploiting the non-Kolmogorov model and Rytov approximation theory, a propagation model of Bessel–Gaussian vortex beams (BGVB) propagating in a subway tunnel is derived. Based on the propagation model, a model of orbital angular momentum (OAM) mode probability distribution is established to evaluate the propagation performance when the beam propagates along both longitudinal and transverse directions in the subway tunnel. By numerical simulations and experimental verifications, the influences of the various parameters of BGVB and turbulence on the OAM mode probability distribution are evaluated, and the results of simulations are consistent with the experimental statistics. The results verify that the middle area of turbulence is more beneficial for the vortex beam propagation than the...
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关键词翻译
关键词翻译
  • 指示 传递
  • propagating 传递
  • directions 传递
  • tunnel 坑道
  • longitudinal 纵向的
  • transverse 横的
  • topological 拓扑的
  • propagation 传播
  • subway 地下铁道
  • OAM Operand Addressing Mode
  • vortex 涡旋