Spatial coherence determination from the Fourier analysis of a resonant soft X-ray magnetic speckle pattern.

@article{Bagschik2016SpatialCD,
  title={Spatial coherence determination from the Fourier analysis of a resonant soft X-ray magnetic speckle pattern.},
  author={Kai Bagschik and Robert Fr{\"o}mter and Leonard Mueller and Wojciech Roseker and Judith Bach and Philipp Staeck and Carsten Th{\"o}nnissen and Stefan Schleitzer and M H Berntsen and Christian Weier and Roman Adam and Jens Viefhaus and Claus Michael Schneider and G. Gr{\"u}bel and Hans Peter Oepen},
  journal={Optics express},
  year={2016},
  volume={24 20},
  pages={23162-23176}
}
We present a method to determine the two-dimensional spatial coherence of synchrotron radiation in the soft X-ray regime by analyzing the Fourier transform of the magnetic speckle pattern from a ferromagnetic film in a multidomain state. To corroborate the results, a Young's double-pinhole experiment has been performed. The transverse coherence lengths in vertical and horizontal direction of both approaches are in a good agreement. The method presented here is simple and gives a direct access… CONTINUE READING