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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 14 — Jul. 4, 2011
  • pp: 12873–12878

Fraunhofer diffraction of a partially blocked spiral phase plate

Don M. Cottrell, Jeffrey A. Davis, and Travis J. Hernandez  »View Author Affiliations


Optics Express, Vol. 19, Issue 14, pp. 12873-12878 (2011)
http://dx.doi.org/10.1364/OE.19.012873


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Abstract

The Fraunhofer diffraction pattern from a partially blocked spiral phase plate (SPP) produces a partial vortex output pattern that is rotated by 90 degrees compared with the input. The rotation direction depends on whether the angular phase pattern increases in the clockwise or counterclockwise direction. In this work, we present an explanation of this effect based on careful examination of classical diffraction theory and show new experimental results. This approach is very convenient for easily determining the sign of the vortex charge.

© 2011 OSA

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.1960) Diffraction and gratings : Diffraction theory

ToC Category:
Diffraction and Gratings

History
Original Manuscript: April 11, 2011
Revised Manuscript: June 1, 2011
Manuscript Accepted: June 5, 2011
Published: June 20, 2011

Citation
Don M. Cottrell, Jeffrey A. Davis, and Travis J. Hernandez, "Fraunhofer diffraction of a partially blocked spiral phase plate," Opt. Express 19, 12873-12878 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-14-12873


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