Berlakovich, N., Csencsics, E., Senoner, D., & Schitter, G. (2023). Fast modal reconstruction of large plane wavefronts from sparse measurements using Shack-Hartmann sensors. Applied Optics, 62(26), 6986–6992. https://doi.org/10.1364/AO.493076
E376-01 - Forschungsbereich Intelligente Mechatronische Systeme E350 - Fakultät für Elektrotechnik und Informationstechnik
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Journal:
Applied Optics
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ISSN:
1559-128X
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Date (published):
10-Sep-2023
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Number of Pages:
7
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Publisher:
OPTICA PUBLISHING GROUP
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Peer reviewed:
Yes
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Keywords:
Messtechnik
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Abstract:
A concept for the fast measurement and reconstruction of optical wavefronts using Shack-Hartmann sensors (SHSs) is presented. For wavefronts with a diameter at the scale of several tens of millimeters, hundreds of measurements with an SHS may be necessary to cover the wavefront. In the proposed concept, a few SHSs are used to measure about 2% of the entire wavefront, providing sufficient measurement data for its successful reconstruction. The small number of SHSs mounted in parallel makes the concept suitable for time-critical applications. A simulation analysis is performed, and an experimental validation of the concept is presented, demonstrating that the wavefront can be reconstructed with an RMS error of about 100 nm.
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Research Areas:
Mathematical and Algorithmic Foundations: 50% Sensor Systems: 50%
