title: Angular self-reconstruction of petal-like beams.
abstract: The self-reconstruction of superpositions of Laguerre-Gaussian (LG) beams has been observed experimentally, but the results appear anomalous and without a means to predict under what conditions this take place. In this Letter, we offer a simple equation for predicting the self-reconstruction distance of superpositions of LG beams, which we confirm by numerical propagation as well as by experiment. We explain that the self-reconstruction process is not guaranteed and predict its dependence on the obstacle location and obstacle size.
authors.affiliation: Council for Scientific and Industrial Research, Pretoria 0001, South Africa. ILitvin@csir.co.za
authors.forename: Igor A
authors.initials: IA
authors.lastname: Litvin
authors.forename: Liesl
authors.initials: L
authors.lastname: Burger
authors.forename: Andrew
authors.initials: A
authors.lastname: Forbes