Fast modal reconstruction of large plane wavefronts from sparse measurements using Shack-Hartmann sensors.
Appl Opt
; 62(26): 6986-6992, 2023 Sep 10.
Article
en En
| MEDLINE
| ID: mdl-37707038
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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01-internacional
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MEDLINE
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En
Revista:
Appl Opt
Año:
2023
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Article