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Experimental Shack–Hartmann Wavefront Sensor (SHWFS) measurements were collected and examined to further understand image-plane irradiance pattern behavior in the presence of potentially sharp thermodynamic gradients. An analysis of path-integrated phase and image-plane irradiance pattern spreading discovered regions within a weakly compressible shear layer where sharp gradients were previously not observed. This paper describes the analysis process and shows results which suggest that Shack-Hartmann wavefront sensors are not adequately resolving sharp thermodynamic gradients in aberrating flows.
Conference Presentation
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Jonathan Wells,Matthew Kalensky,R. Mark Rennie, andEric J. Jumper
"Experimental and computational investigation of laser beam propagation through a free shear layer", Proc. SPIE 12693, Unconventional Imaging, Sensing, and Adaptive Optics 2023, 1269315 (3 October 2023); https://doi.org/10.1117/12.2677374
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Jonathan Wells, Matthew Kalensky, R. Mark Rennie, Eric J. Jumper, "Experimental and computational investigation of laser beam propagation through a free shear layer," Proc. SPIE 12693, Unconventional Imaging, Sensing, and Adaptive Optics 2023, 1269315 (3 October 2023); https://doi.org/10.1117/12.2677374