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.
© 2012 Optical Society of America
Original Manuscript: January 3, 2012
Manuscript Accepted: January 26, 2012
Published: April 4, 2012
Ihor Skab, Yuriy Vasylkiv, Oleh Krupych, Viktoriya Savaryn, and Rostyslav Vlokh, "Generation of doubly charged vortex beam by concentrated loading of glass disks along their diameter," Appl. Opt. 51, 1631-1637 (2012)