Analysis of the topological charge by focusing vortex beams with a cylinder lens

Liang Liu; Kaiming Wang; Xiujun Huang; Hongyan Xu; Zhenjiang Song; Dele Shi; Shanshan Wang

doi:10.1117/12.2523354

10 May 2019 Analysis of the topological charge by focusing vortex beams with a cylinder lens

Liang Liu, Kaiming Wang, Xiujun Huang, Hongyan Xu, Zhenjiang Song, Dele Shi, Shanshan Wang

Proceedings Volume 11068, Second Symposium on Novel Technology of X-Ray Imaging; 110680J (2019) https://doi.org/10.1117/12.2523354
Event: Second Symposium on Novel Technology of X-Ray Imaging, 2018, Hefei, China

Abstract

Vortex beams have special applications in many areas, such as quantum information processing, quantum entanglement, particles trapping and manipulation etc. A great deal of attention has been given to the research of the generating vortex beam and measuring the topological charge. This paper presents a method to measure the topological charge of vortex beams by using a cylinder Lens. Simulation and experiment results show that dark stripes appear when topological charge is non-zero, and the number of dark stripes is equal to the topological charge. Therefore our research results may be applied as a new method to analyze the topological charge of vortex beams．

Citation Download Citation

Liang Liu, Kaiming Wang, Xiujun Huang, Hongyan Xu, Zhenjiang Song, Dele Shi, and Shanshan Wang "Analysis of the topological charge by focusing vortex beams with a cylinder lens", Proc. SPIE 11068, Second Symposium on Novel Technology of X-Ray Imaging, 110680J (10 May 2019); https://doi.org/10.1117/12.2523354

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