Heuristic Explanation of Grating Shearing Interferometry Using Incoherent Illumination
- 1 January 1984
- journal article
- research article
- Published by Taylor & Francis in Optica Acta: International Journal of Optics
- Vol. 31 (1), 33-38
- https://doi.org/10.1080/713821399
Abstract
The principles and performance of different grating shearing interferometers with spatially incoherent illumination are interpreted using a simple heuristic approach based on the multiple mutually incoherent superposition of the well known Ronchi-Talbot test. The parameters of the fringes are easily predicted without resorting to extended analytical or computer calculations.Keywords
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