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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 5 — May. 17, 2007

Sidelobe contrast reduction for optical vortex beams using a helical axicon

V. V. Kotlyar, A. A. Kovalev, V. A. Soifer, C. Stewart Tuvey, and Jeffrey A. Davis  »View Author Affiliations


Optics Letters, Vol. 32, Issue 8, pp. 921-923 (2007)
http://dx.doi.org/10.1364/OL.32.000921


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Abstract

We present a new approach for generating an optical vortex pattern with reduced sidelobes without increasing the radius of the vortex and without excessive energy loss. Our technique combines the spiral phase plate with a weak axicon to form a helical axicon. Experimental results using a liquid crystal display agree with theory.

© 2007 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.7010) Lasers and laser optics : Laser trapping
(230.6120) Optical devices : Spatial light modulators

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: October 31, 2006
Revised Manuscript: December 11, 2006
Manuscript Accepted: December 28, 2006
Published: March 19, 2007

Virtual Issues
Vol. 2, Iss. 5 Virtual Journal for Biomedical Optics

Citation
V. V. Kotlyar, A. A. Kovalev, V. A. Soifer, C. Stewart Tuvey, and Jeffrey A. Davis, "Sidelobe contrast reduction for optical vortex beams using a helical axicon," Opt. Lett. 32, 921-923 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-32-8-921

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