title: Generation of doubly charged vortex beam by concentrated loading of glass disks along their diameter.
abstract: We show that a system of glass disks compressed along their diameters enables one to induce a doubly charged vortex beam in the emergent light when the incident light is circularly polarized. Using such a disk system, one can control the efficiency of conversion of the spin angular momentum to the orbital angular momentum by a loading force. The consideration presented here can be extended for the case of crystalline materials with high optical damage thresholds in order to induce high-power vortex beams.
authors.affiliation: Institute of Physical Optics, Lviv, Ukraine.
authors.forename: Ihor
authors.initials: I
authors.lastname: Skab
authors.forename: Yuriy
authors.initials: Y
authors.lastname: Vasylkiv
authors.forename: Oleh
authors.initials: O
authors.lastname: Krupych
authors.forename: Viktoriya
authors.initials: V
authors.lastname: Savaryn
authors.forename: Rostyslav
authors.initials: R
authors.lastname: Vlokh