Abstract

We propose a design for a phase mask for generating an optical vortex with suppressed sidelobes in the focal plane where the radius of the intensity ring is variable. A radial modulation added to conventional phase mask $\exp \left(il\theta \right)$ projects the light diffracted from different annular zones into a single intensity ring in the focal plane.

© 2006 Optical Society of America

Generalized approach to modifying optical vortices with suppressed sidelobes using Bessel-like functions

J. Chen, X.-C. Yuan, X. Zhao, Z. L. Fang, and S. W. Zhu
Opt. Lett. 34(21) 3289-3291 (2009)

Modified optical vortices for encoding topological charges with principal-sidelobe ring relationships

Jun Chen, Xing Zhao, Zhiliang Fang, Siwei Zhu, and X.-C. Yuan
Opt. Lett. 35(9) 1485-1487 (2010)

Achromatic optical vortex lens

Grover A. Swartzlander, Jr.
Opt. Lett. 31(13) 2042-2044 (2006)

Properties of circularly polarized vortex beams

Qiwen Zhan
Opt. Lett. 31(7) 867-869 (2006)

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
Opt. Lett. 32(8) 921-923 (2007)