title: Mode analysis in optics through fractional transforms.
abstract: The relationship between the mode content and the fractional Fourier and fractional Hankel transforms of a function is established. It is shown that the Laguerre-Gauss spectrum of a rotationally symmetric wave front can be determined from the wave front's fractional Hankel transforms taken at the optical axis.
authors: T
authors: T
authors: Alieva
authors: M J
authors: MJ
authors: Bastiaans