Measurement of orbital angular momentum and topological charge in optical vortices with shaped vortex cores
structured light
Frontiers in Optics 2014, FTu1C.6 (2014)
Abstract
Optical vortices (OV) with shaped vortex cores can extend the applicability of OV, but are not well characterized by usual methods. We describe and experimentally demonstrate how shaped OV may be characterized, based on the definitions of classical orbital angular momentum and topological charge.