Wavefront retrieval from lateral shearing interferograms with Fourier techniques

Daniel Malacara-Hernandez; Gonzalo Paez; Daniel Malacara-Doblado; Jorge Garcia-Marquez

doi:10.1117/12.357726

13 August 1999 Wavefront retrieval from lateral shearing interferograms with Fourier techniques

Daniel Malacara-Hernandez, Gonzalo Paez, Daniel Malacara-Doblado, Jorge Garcia-Marquez

Author Affiliations +

Proceedings Volume 3744, Interferometry '99: Techniques and Technologies; (1999) https://doi.org/10.1117/12.357726
Event: International Conference on Optical Metrology, 1999, Pultusk Castle, Poland

Abstract

The wavefront shape can be obtained from lateral shear interferograms even if the lateral shear is large. Many procedures have been devised in the past to achieve this purpose. However, all of them have serious practical restrictions. A method is reported here using a digital analysis of the interferogram in the Fourier space. An alternative iterative method also using Fourier transform techniques is also presented with detail. A comparison of this method with alternative existing procedures is described.

Citation Download Citation

Daniel Malacara-Hernandez, Gonzalo Paez, Daniel Malacara-Doblado, and Jorge Garcia-Marquez "Wavefront retrieval from lateral shearing interferograms with Fourier techniques", Proc. SPIE 3744, Interferometry '99: Techniques and Technologies, (13 August 1999); https://doi.org/10.1117/12.357726

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