Comparative study of three airglow (aurora) spectral line profiles based on vortex light

Li Cunxia; Zhang Yishan; Zhou Jian; Liu Yanghe; Hui Ningju; Wang Yanlong; Fu Didi; Tang Yuanhe

doi:10.11884/HPLPB202537.240351

Volume 37 Issue 5

Mar. 2025

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Article Navigation > High Power Laser and Particle Beams > 2025 > 37(5): 059002

Li Cunxia, Zhang Yishan, Zhou Jian, et al. Comparative study of three airglow (aurora) spectral line profiles based on vortex light[J]. High Power Laser and Particle Beams, 2025, 37: 059002. doi: 10.11884/HPLPB202537.240351

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Li Cunxia, Zhang Yishan, Zhou Jian, et al. Comparative study of three airglow (aurora) spectral line profiles based on vortex light[J]. High Power Laser and Particle Beams, 2025, 37: 059002. doi: 10.11884/HPLPB202537.240351

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Comparative study of three airglow (aurora) spectral line profiles based on vortex light

doi: 10.11884/HPLPB202537.240351

Li Cunxia^{1, 2
,},
Zhang Yishan¹,
Zhou Jian¹,
Liu Yanghe³,
Hui Ningju^{1, 2},
Wang Yanlong¹,
Fu Didi¹,
Tang Yuanhe^{1
,
,}

1.
School of Science , Xi’an University of Technology, Xi’an 710048, China
2.
Key Laboratory of Ultrafast Photoelectric Technology and Terahertz Science, Xi’an University of Technology, Xi’an 710048, China
3.
School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China

Received Date: 2024-10-08
Accepted Date: 2025-03-04
Rev Recd Date: 2025-03-04

Available Online: 2025-03-26

Publish Date: 2025-03-31

Abstract

Abstract

Adding the vortex factors to the Gaussian, Lorenz, and Voigt airglow (aurora) light spectrum profiles of the for the upper atmospheric wind measurement, the vortex expressions of the three profiles of airglow (aurora) light sources are derived theoretically. The three profiles of airglow (aurora) with vortex light are simulated, and it is found that the extinction of the three profiles of light sources varies with the topological charge number l. The Gaussian vortex light rotates around the axis and the phase changes by 2πl, and the central extinction part and phase increase with the increase of l. The main extinction direction of Lorenz vortex is the transverse axis distribution direction. With the increase of l, the light intensity decreases, and the center extinction is carried out in discontinuous mode, which has a spiral spatial phase structure. Voigt vortex light profile is symmetrical on both the transverse and longitudinal sides, and the top is V-shaped extinction along the -z direction. The expressions are derived between the interference intensity of the three profile of vortex light, optical path difference and topological charge number, and the 3D diagram of the interference fringe of the three profiles of vortex light is simulated, and it is found that the spatial spectral intensity produces different fork structures under different topological charge number: with the change of vortex phase, the original spatial distribution changes, and the whole extends and extrudes from the maximum light intensity to both sides, and the influence of vortex phase extrude and dislocation is greater under fractional topological load. The experimental results show that there are fringes outside the bright ring of the Gaussian vortex light with the same topological charge number l, and the total topological phase will increase 2π and the beam waist radius will increase with each increase of topological charge number l by 1.
- airglow (aurora),
- spectral profile,
- Gaussian vortex light,
- topological charge,
- upper atmosphere

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References(16)

References

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