Optical vortices produced with a nonspiral phase plate

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-varyi...

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Bibliographic Details
Published inApplied optics (2004) Vol. 36; no. 33; p. 8614
Main Authors Kim, G H, Jeon, J H, Ko, K H, Moon, H J, Lee, J H, Chang, J S
Format Journal Article
LanguageEnglish
Published United States 20.11.1997
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Summary: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.
ISSN:1559-128X
DOI:10.1364/AO.36.008614