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Design of wide-field imaging shack Hartmann testbed
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Paper Abstract

Standard adaptive optics systems measure the aberrations in the wavefronts of a beacon guide star caused by atmospheric turbulence, which limits the corrected field of view to the isoplanatic patch, the solid angle over which the optical aberration is roughly constant. For imaging systems that require a corrected field of view larger than the isoplanatic angle, a three-dimensional estimate of the aberration is required. We are developing a wide-field imaging Shack-Hartmann wavefront sensor (WFS) that will characterize turbulence over a large field of view tens of times the size of the isoplanatic angle. The technique will find application in horizontal and downward looking remote sensing scenarios where high resolution imaging through extended atmospheric turbulence is required. The laboratory prototype system consists of a scene generator, turbulence simulator, a Shack Hartman WFS arm, and an imaging arm. The system has a high intrinsic Strehl ratio, is telecentric, and diffraction limited. We present preliminary data and analysis from the system.

Paper Details

Date Published: 20 September 2016
PDF: 7 pages
Proc. SPIE 9982, Unconventional Imaging and Wavefront Sensing XII, 998204 (20 September 2016); doi: 10.1117/12.2237862
Show Author Affiliations
Lauren H. Schatz, College of Optical Sciences, The Univ. of Arizona (United States)
R. Phillip Scott, College of Optical Sciences, The Univ. of Arizona (United States)
Ryan S. Bronson, College of Optical Sciences, The Univ. of Arizona (United States)
Lucas R. W. Sanchez, College of Optical Sciences, The Univ. of Arizona (United States)
Michael Hart, College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 9982:
Unconventional Imaging and Wavefront Sensing XII
Jean J. Dolne; Thomas J. Karr; David C. Dayton, Editor(s)

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