Adaptive wavefront shaping for flow-field measurements

N. Koukourakis; B. Fregin; L. Büttner; J. W. Czarske

doi:10.1117/12.2212408

15 March 2016 Adaptive wavefront shaping for flow-field measurements

N. Koukourakis, B. Fregin, L. Büttner, J. W. Czarske

Proceedings Volume 9717, Adaptive Optics and Wavefront Control for Biological Systems II; 97170Z (2016) https://doi.org/10.1117/12.2212408
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

In this contribution we use wavefront shaping approaches for image correlation based flow-field measurements for the first time. Aberrations introduced by a single phase boundary in the detection beam path were explored. Variations of the optical path-length result in strong errors in position allocation and thus to an enhancement of the measurement uncertainty of the velocity. Our results show that the usage of wavefront shaping enables to reduce these errors and to strongly improve the quality of image correlation based flow-field measurements. First experimental and simulated results underline the importance of these approaches.

Conference Presentation

Citation Download Citation

N. Koukourakis, B. Fregin, L. Büttner, and J. W. Czarske "Adaptive wavefront shaping for flow-field measurements", Proc. SPIE 9717, Adaptive Optics and Wavefront Control for Biological Systems II, 97170Z (15 March 2016); https://doi.org/10.1117/12.2212408

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