title: Nonredundant array of apertures to measure the spatial coherence in two dimensions with only one interferogram.
abstract: We propose to use a mask with a nonredundant array (NRA) of multiple apertures to measure spatial coherence in two dimensions. The spatial distribution of the apertures in the mask is made in such a way that we obtain a quasi-uniform sampling in the coherence domain. The spatial coherence is obtained by Fourier transform of the interferogram generated by the mask when it is illuminated by the light field under analysis.
authors.affiliation: IRAMIS-Service des Photons, Atomes et Molécules, CEA-Saclay, 91191 Gif sur Yvette, France. aura‑ines.gonzalez@cea.fr
authors.forename: Aura I
authors.initials: AI
authors.lastname: González
authors.forename: Yobani
authors.initials: Y
authors.lastname: Mejía