Abstract
We present simple methods to produce optical vortices on the axis of beam propagation with nonspiral phase plates. We show that a phase plate that provides linear phase retardation on one half of a laser beam produces optical vortices, which is demonstrated experimentally by use of a thickness-varying glass platelet. We also demonstrate and explain that mixed dislocations of a bent edge dislocation transform into a pair of vortices with opposing topological charges.
© 1997 Optical Society of America
Full Article | PDF ArticleMore Like This
K. J. Moh, X.-C. Yuan, W. C. Cheong, L. S. Zhang, J. Lin, B. P. S. Ahluwalia, and H. Wang
Appl. Opt. 45(6) 1153-1161 (2006)
Gabriel Molina-Terriza, Jaume Recolons, and Lluis Torner
Opt. Lett. 25(16) 1135-1137 (2000)
Gabriel Molina-Terriza, Ewan M. Wright, and Lluis Torner
Opt. Lett. 26(3) 163-165 (2001)