Abstract

A new method that reshapes a Gaussian laser beam into a polygon of diffraction-limited size with a flat or a pyramidal top is presented. The technique is based on the use of computer-generated holograms with phase dislocations (singularities).

© 1999 Optical Society of America

Color-image generation by use of binary-phase holograms

Ho Hyung Suh
Opt. Lett. 24(10) 661-663 (1999)

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Optical vortices generated by dislocations in a cholesteric liquid crystal

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Noncollinear second-harmonic generation in periodically poled KTiOPO₄ excited by the Bessel beam

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