3D micro-optical elements for generation of tightly focused vortex beams
Armandas Balčytis, Davit Hakobyan, Martynas Gabalis, Albertas Žukauskas, Darius Urbonas, Mangirdas Malinauskas, Raimondas Petruškevičius, Etienne Brasselet and Saulius Juodkazis
MATEC Web of Conferences, 32 (2015) 03002
DOI: https://doi.org/10.1051/matecconf/20153203002