Image based aberration retrieval using helical point spread functions

Title

Image based aberration retrieval using helical point spread functions

 Author

Berlich, R. (TU Delft ImPhys/Computational Imaging; Fraunhofer Institute for Applied Optics and Precision Engineering)
Stallinga, S. (TU Delft ImPhys/Imaging Physics) ORCID 0000-0003-4978-3272

 Department

ImPhys/Imaging Physics

 Date

2020

 Abstract

A practical method for determining wavefront aberrations in optical systems based on the acquisition of an extended, unknown object is presented. The approach utilizes a conventional phase diversity approach in combination with a pupil-engineered, helical point spread function (PSF) to discriminate the aberrated PSF from the object features. The analysis of the image’s power cepstrum enables an efficient retrieval of the aberration coefficients by solving a simple linear system of equations. An extensive Monte Carlo simulation is performed to demonstrate that the approach makes it possible to measure low-order Zernike modes including defocus, primary astigmatism, coma, and trefoil. The presented approach is tested experimentally by retrieving the two-dimensional aberration distribution of a test setup by imaging an extended, unknown scene.


 To reference this document use:

http://resolver.tudelft.nl/uuid:2d6287f6-eed6-4936-b76f-6dc34cb1a301

 DOI

https://doi.org/10.1364/AO.396140

 Embargo date

2021-01-27

 ISSN

1559-128X

 Source

Applied Optics, 59 (22), 6557-6572

 Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2020 R. Berlich, S. Stallinga
Files
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