FIG 3 (IMAGE) Compuscript Ltd Caption Experimental results of topological charge measurement of partially coherent vortex beams in complex environments via a cross-phase. Credit OEA Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.