Measuring coherence functions using non-parallel double slits.
We present an experimental method for the fast measurement of both the spectral (spatial) and complex degrees of coherence of an optical field using only a binary amplitude mask and a detector array. We test the method by measuring a two-dimensional spectral degree of coherence function created by a broadband thermal source. The results are compared to those expected by the van Cittert-Zernike theorem and found to agree well in both amplitude and phase.
Shawn
S
Divitt
Zachary J
ZJ
Lapin
Lukas
L
Novotny