Abstract
We describe a highly robust method, applicable to both electromagnetic and matter-wave beams, that can produce a beam consisting of a lattice of orbital angular momentum (OAM) states coupled to a two-level system. We also define efficient protocols for controlling and manipulating the lattice characteristics. These protocols are applied in an experimental realization of a lattice of optical spin-orbit beams. The novel passive devices we demonstrate here are also a natural alternative to existing methods for producing single-axis OAM and spin-orbit beams. Our techniques provide new tools for investigations of chiral and topological materials with light and particle beams.
© Sarenac, D., Cory, D. G., Nsofini, J., Hincks, I., Miguel, P., Arif, M., Clark, C. W., Huber, M. G., & Pushin, D. A. (2018). Generation of a Lattice of Spin-Orbit Beams via Coherent Averaging. Physical Review Letters, 121(18). https://doi.org/10.1103/physrevlett.121.183602