Electromagnetic vortex topologies from sparse circular phased arrays
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 01, 2022
- Source ID
- 10.1088/2399-6528/ac5089
Entities
People
- Andrei Afanasev
- Hao Wang
- K Szekerczes
Organizations
- United States Army