Comparison of different wavefront reconstruction methods

With Zernike polynomials

Bachelor thesis (2016)

Authors

J.H. Salverda Applied Sciences

Contributors

S.F. Pereira (mentor)
J. Kalkman (graduation committee member)
L. Cisotto (graduation committee member)
Faculty
Applied Sciences, Applied Sciences
Copyright: © 2016 Jelle Salverda
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Published Date

01-07-2016

Language

English

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Faculty

Applied Sciences

Abstract

The goal of the research is to find out whether it is possible to measure a wavefront qualitatively and quantitatively with Janssen’s recently developed analytical algorithm. The spot displacements given by the wavefront sensor are used to relate the derivatives of the wavefront with respect to x and y with the Zernike coefficients of the wavefront itself. The results are compared with some conventional and commercially used methods: an iterative integration method of the SHS, which have been implemented in a Matlab script. Moreover, some of them are compared with the reconstructed wavefront obtained through interferometry. Janssen's method turns out to be a reliable and fast (regarding computation time) wavefront reconstruction method to qualify which aberrations are present.

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