Coherence analysis of the Lau interferometer
- 15 September 1986
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 25 (18) , 3141-3145
- https://doi.org/10.1364/ao.25.003141
Abstract
The Lau interferometer is a modified-coherence interferometer. A grating is used to introduce a coherence function which samples a phase object over a spatially limited region. A second grating overlaps mutually coherent points and creates a sheared image. Achromatic bias fringes may be introduced to aid interpretation.Keywords
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