Fig. 2
From: Topological protection of optical skyrmions through complex media

Experiment assembly and measured Stokes fields. a The various corrupting elements used in testing, and the class of media they belong to. In experimentation, the corrupting components are placed immediately after the beam generator. Here, I indicates the input beam and O the output beam. b The order of components and SLM phase patterns used in testing. c The measured Stokes fields for different experiment configurations and input Skyrmion numbers. Simulated Stokes fields for configuration A are also shown