Spectral shifts and spectral switches of partially coherent electromagnetic vortex beam propagating through turbulent atmosphere

Bangzhuo An; Yonggen Xu; Liang Zhao; Ning Yang

doi:10.1117/12.3013644

30 April 2024 Spectral shifts and spectral switches of partially coherent electromagnetic vortex beam propagating through turbulent atmosphere

Bangzhuo An, Yonggen Xu, Liang Zhao, Ning Yang

Author Affiliations +

Proceedings Volume 13153, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems; 1315308 (2024) https://doi.org/10.1117/12.3013644
Event: Sixth Conference on Frontiers in Optical Imaging Technology and Applications (FOI2023), 2023, Nanjing, JS, China

Abstract

The spectral shifts and spectral switches of partially coherent electromagnetic Gaussian Schell-model (PCEGSM) vortex beam in atmospheric turbulence have been investigated. It can be found that the on-axis spectral peak and the off-axis spectral peak of PCEGSM vortex beam will shift rapidly in turbulence with the increase of propagation distance in comparison with PCEGSM non-vortex beam. We find also that the two spectral peaks and three spectral peaks of PCEGSM vortex beam appear in atmospheric turbulence. It is shown that the spectrum of PCEGSM vortex beam in turbulence alternates between redshift and blueshift with increasing propagation distance, the phenomenon is defined as the spectral switches. And it indicates that the spectral shift of PCEGSM vortex beam will be extremely small at a large propagation distance, meaning that the PCEGSM vortex beam has a strong anti-turbulence ability. Our results can provide the theoretical reference for the detection of Doppler lidar.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Bangzhuo An, Yonggen Xu, Liang Zhao, and Ning Yang "Spectral shifts and spectral switches of partially coherent electromagnetic vortex beam propagating through turbulent atmosphere", Proc. SPIE 13153, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems, 1315308 (30 April 2024); https://doi.org/10.1117/12.3013644

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