title: Laguerre-Gaussian supercontinuum.
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.
authors.affiliation: Institute for Ultrafast Spectroscopy and Lasers, NASA Center for Optical Sensing and Imaging, Department of Physics, The City College and Graduate School of CUNY, New York, NY 10031, USA.
authors.forename: H I
authors.initials: HI
authors.lastname: Sztul
authors.forename: V
authors.initials: V
authors.lastname: Kartazayev
authors.forename: R R
authors.initials: RR
authors.lastname: Alfano