Topology and Polarization of Optical Vortex Fields from Atomic Phased Arrays
Abstract
We developed a theoretical formalism for the generation of optical vortices by phased arrays of atoms. Using the Jacobi–Anger expansion, we demonstrated the resulting field topology and determined the least number of individual atoms necessary for the generation of vortices with a given topological charge. Vector vortices were considered, taking into account both the spin and orbital angular momenta of electromagnetic fields. It was found for the vortex field that, in the far field limit, the spatial variation in spin-density matrix parameters—orientation and alignment—is independent of the distance to the radiation source.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 04, 2023
- Source ID
- 10.3390/app13095672
Entities
People
- Andrei Afanasev
- Hao Wang
Organizations
- George Washington University
- United States Army