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1 August 2021 Arbitrary-order vortex lattice and linear vortex array formed by the superposition of two edge dislocation fields
Kunpeng Liu, Zhigang Liu
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Proceedings Volume 11818, Laser Beam Shaping XXI; 1181803 (2021) https://doi.org/10.1117/12.2592929
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States
Abstract
The vortex lattice and linear vortex array are network structures of multiple isolated vortices. We propose a method to generate these multi-vortex fields via superimposing two engineered edge dislocation arrays. By designing the topology of the edge dislocation array for stacking, we may obtain an arbitrary-order vortex lattice and linear vortex array. Besides, these edge dislocation array fields can be decomposed into a finite sum of harmonics, which indicates that anyorder vortex array can be created by using wave interference. It supplements the research about the vortex array generated by the interference method for the highest-order vortex lattice obtained by interferometry is 3rd at present. The feasibility of the proposed method is validated through simulations and experiments based on fourth-and fifth-order vortex lattices and linear vortex arrays.
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Kunpeng Liu and Zhigang Liu "Arbitrary-order vortex lattice and linear vortex array formed by the superposition of two edge dislocation fields", Proc. SPIE 11818, Laser Beam Shaping XXI, 1181803 (1 August 2021); https://doi.org/10.1117/12.2592929
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KEYWORDS
Superposition
Optical vortices
Interferometry
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