We provide measurements of Young’s double-slit experiment using a partially-coherent light source consisting of a helium-neon laser incident on a rotating piece of white paper. The data allow a quantitative comparison with both the standard theory that does not account for the width of the slits, and a full, analytic model that does. The data agree much more favorably with the full calculation.
Pearson, Brett J., Natalie Ferris, Ruthie Strauss, Hongyi Li, and David P. Jackson. "Measurements of Slit-Width Effects in Young's Double-Slit Experiment for a Partially-Coherent Source." OSA Continuum 1, no. 2 (2018): 755-763. https://www.osapublishing.org/osac/abstract.cfm?uri=osac-1-2-755