Abstract

We show what is believed to be the first coherent white-light optical vortices generated from supercontinuum that have the azimuthally varying phase structure consistent with a monochromatic Laguerre–Gaussian beam. Two methods of Laguerre–Gaussian supercontinuum generation are discussed and contrasted. We use a computer-generated hologram to convert a Gaussian white-light supercontinuum source into Laguerre–Gaussian supercontinuum.

© 2006 Optical Society of America

Optical micromanipulation using supercontinuum Laguerre-Gaussian and Gaussian beams

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