Scattering of partially coherent vortex beam by rough surface in atmospheric turbulence

Dong, K., Cheng, M., Lavery, M. P.J. , Geng, S., Wang, P. and Guo, L. (2022) Scattering of partially coherent vortex beam by rough surface in atmospheric turbulence. Optics Express, 30(3), pp. 4165-4178. (doi: 10.1364/OE.444155) (PMID:35209659)

Abstract

A double-passage propagation model of partially coherent Laguerre-Gaussian (LG) vortex beams with orbital angular momentum (OAM) modes in turbulent atmosphere after scattering from Gaussian rough surfaces was formulated. Rough surface scattering had a weak effect on the spreading of a vortex beam in turbulent atmosphere. However, it severely influenced the phase on this beam, rapidly reducing the original OAM mode’s relative intensity. The OAM spectrum information is more useful than the intensity information for rough surface object remote sensing. Additionally, by comparing the scattering intensity in monostatic and bistatic systems, the enhanced backscatter of vortex beams from Gaussian rough surfaces was verified.

• Item Type: Articles
• Additional Information: Funding: National Natural Science Foundation of China (61621005, 61627901, 61901336, 61905186); Natural Science Foundation of Shaanxi Province (2020JQ-286).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Lavery, Professor Martin
• Authors: Dong, K., Cheng, M., Lavery, M. P.J., Geng, S., Wang, P., and Guo, L.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Optics Express
• Publisher: Optical Society of America
• ISSN: 1094-4087
• ISSN (Online): 1094-4087
• Published Online: 25 January 2022
• Copyright Holders: Copyright © 2022 Optica Publishing Group
• First Published: First published in Optics Express 30(3): 4165-4178
• Publisher Policy: Reproduced in accordance with the publisher copyright policy