Comment on "partially coherent flat-topped beam and its propagation"

Appl Opt. 2006 Jan 10;45(2):366-8; discussion 369-71. doi: 10.1364/ao.45.000366.

Abstract

We point out that the expression of the cross-spectral density (CSD) of a partially coherent flat-topped beam (PCFB) given by Ge et al. [Appl. Opt. 43, 4732 (2004)] is incorrect. The results show that the M2 factor derived based on Ge's expression leads to M2 < 1 in some cases, which is physically unacceptable. A new expression of the CSD for a PCFB is given.

Publication types

  • Comment