Visualization 1: Geometric phase shaping of terahertz vortex beams Amalya Minasyan Clément Trovato Jérôme Degert Eric Freysz Etienne Brasselet Emmanuel Abraham 10.1364/OL.42.000041.v001 https://opticapublishing.figshare.com/articles/media/Visualization_1_Geometric_phase_shaping_of_terahertz_vortex_beams/4920950 Visualization1 Originally published in Optics Letters on 01 January 2017 (ol-42-1-41) 2017-01-01 00:00:00 01 January 2017 terahertz vortex beams Visualization 1 phase Geometric Optics Letters