Influence of aperture size on wavefront sensor based on the Talbot effect

Dmytro V. Podanchuk; Myhailo M. Kotov; Andrey A. Goloborodko; Vitalij N. Kurashov; Volodymyr P. Dan’ko; Andrey V. Kurashov

doi:10.1117/12.2053774

17 December 2013 Influence of aperture size on wavefront sensor based on the Talbot effect

Dmytro V. Podanchuk, Myhailo M. Kotov, Andrey A. Goloborodko, Vitalij N. Kurashov, Volodymyr P. Dan’ko, Andrey V. Kurashov

Author Affiliations +

Proceedings Volume 9066, Eleventh International Conference on Correlation Optics; 90660S (2013) https://doi.org/10.1117/12.2053774
Event: Eleventh International Conference on Correlation Optics, 2013, Chernivsti, Ukraine

Abstract

The self-imaging phenomenon, or the Talbot effect, is diffraction and interference effect for coherent light that is transmitted through infinite grating or other periodic structure. But in practice, intensity distribution is reproduced with some distortions due to finite size of a grating. The influence of aperture effects on quality of wavefront reconstruction by the sensor based on the Talbot effect is considered in this work. 2D binary and gray-scale amplitude gratings with different periods and form of holes were used as the input element of the sensor. Computer simulation for different aberrations and varying aperture size was performed. The experimental results of comparative analysis of wavefront measurements by the diffraction Talbot sensor with a finite aperture and the Shack-Hartman sensor are presented.

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Dmytro V. Podanchuk, Myhailo M. Kotov, Andrey A. Goloborodko, Vitalij N. Kurashov, Volodymyr P. Dan’ko, and Andrey V. Kurashov "Influence of aperture size on wavefront sensor based on the Talbot effect", Proc. SPIE 9066, Eleventh International Conference on Correlation Optics, 90660S (17 December 2013); https://doi.org/10.1117/12.2053774

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