Supplement 1: Measurement of flow vorticity with helical beams of light Aniceto Belmonte Carmelo Rosales-Guzmán Juan P. Torres 10.1364/OPTICA.2.001002.s001 https://opticapublishing.figshare.com/articles/journal_contribution/Supplement_1_Measurement_of_flow_vorticity_with_helical_beams_of_light/4921598 LG beam Originally published in Optica on 20 November 2015 (optica-2-11-1002) 2015-11-20 00:00:00 flow vorticity helical beams Optica supplement 20 November 2015 optica Measurement light LG beam