We demonstrate a powerful method to simultaneously measure both the azimuthal and radial indices of pure Laguerre-Gaussian fields. The shape of the diffracting mask used to determine the mode indices is of little importance.
© 2012 OSA
M. Mazilu, A. Mourka, T. Vettenburg, E. Wright, and K. Dholakia, "Determination of the azimuthal and radial mode indices for light fields possessing orbital angular momentum," in Frontiers in Optics 2012/Laser Science XXVIII, OSA Technical Digest (online) (Optical Society of America, 2012), paper FW4A.4.
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