%0 Journal Article %T Experimental demonstration of tunable refractometer based on orbital angular momentum of longitudinally structured light %A Dorrah, Ahmed %A Zamboni-Rached, Michel %A Mojahedi, Mo %J Light: Science & Applications %V 7 %N 1 %P 1-12 %D 2018-07-25 %I Nature Publishing Group UK %~ DeepDyve