title: Generalized M2 factor of a partially coherent beam propagating through a circular hard-edged aperture.
abstract: The second-order intensity moments and the beam-propagation M2 factor of partially coherent beams that propagate through a circular-symmetry hard-edged aperture are in the cylindrical coordinate system. AJo-correlated Schell-model beam with a Gaussian intensity distribution is an example. The analytical expression for the generalized M2 factor is derived. The numerical calculation results are analyzed.
authors.affiliation: College of Electronics Information, Sichuan University, ChengDu 610064, China. chu-xiaoliang@sohu.com.cn
authors.forename: Xiaoliang
authors.initials: X
authors.lastname: Chu
authors.forename: Bin
authors.initials: B
authors.lastname: Zhang
authors.forename: Qiao
authors.initials: Q
authors.lastname: Wen