出版社：Samarskii Natsional'nyi Issledovatel'skii Universitet imeni Akademika S.P. Koroleva,Samara National Research University
摘要：Generation of vortex laser beams by use of a parabolic vortex lens is discussed. We show that when generating such beams, topological charges of the vortex lens structure and those of the lens individual zones are summed up.
