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Potential of phase-diversity for metrology of active instruments

Korkiakoski, Visa; Venema, Lars; Agócs, Tibor; Keller, Christoph U; Doelman, Niek; Fraanje, Rufus; Andrei, Raluca M; Verhaegen, Michel

Description

We investigate the potential of phase-diversity (PD) and Gerchberg-Saxton (GS) algorithms in the calibration of active instruments. A set of images is recorded with the focal-plane scientific camera, each image having a known and unique defocus. The phase-retrieval algorithms are used, with those images, to estimate the non-common path aberration that needs to be compensated by correct alignment of the instrument. We demonstrate by numerical simulations that such algorithms, in particular GS,...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Conference paper
URI: http://hdl.handle.net/1885/154220
Source: Proceedings of SPIE - The International Society for Optical Engineering
DOI: 10.1117/12.926290
Access Rights: Open Access

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