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arXiv · 2109.12988

Electromagnetic Vortex Topologies from Sparse Circular Phased Arrays

Hao Wang·Kaitlyn Szekerczes·Andrei Afanasev
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Abstract

Structured vortex waves have numerous applications in optics, plasmonics, radio-wave technologies and acoustics. We present a theoretical study of a method for generating vortex states based on coherent superposition of waves from discrete elements of planar phased arrays, given limitations on an element number. Using Jacobi-Anger expansion, we analyze emerging vortex topologies and derive a constraint for the least number of elements needed to generate a vortex with a given leading-order topological charge.

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Hao Wang, Kaitlyn Szekerczes, Andrei Afanasev. 2021-09-27. Electromagnetic Vortex Topologies from Sparse Circular Phased Arrays. https://doi.org/10.1088/2399-6528%2Fac5089

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