Share Email Print
cover

Proceedings Paper • new

Using the statistical properties of phase fluctuations of the light field in a Shack-Hartmann wave front sensor
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

The optical element in the Shack-Hartman wavefront sensor is a microlens raster, which breaks the light field with phase distortions in the approximation of geometric optics into partial beams. The phase fluctuations of the light field within the sub-aperture correspond to the fluctuations of two angles of arrival or the fluctuations of two local inclinations of the wave front within the same limits of the sub-aperture and are associated with correlation relations. In this case, the correlation is a quantitative measure of the "similarity" of the two corresponding phase distributions within the subaperture on the two analyzed Shack-Hartmann patterns. The paper presents the results of numerical experiments on the reconstruction of the wave front using the correlation approach to the centering of focal spots.

Paper Details

Date Published: 18 December 2019
PDF: 6 pages
Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112080Z (18 December 2019); doi: 10.1117/12.2539236
Show Author Affiliations
Denis V. Kazakov, V. E. Zuev Institute of Atmospheric Optics (Russian Federation)
National Research Tomsk State Univ. (Russian Federation)
Vitaly V. Lavrinov, V E Zuev Institute of Atmospheric Optics (Russian Federation)
L. N. Lavrinova, V. E. Zuev Institute of Atmospheric Optics (Russian Federation)


Published in SPIE Proceedings Vol. 11208:
25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii; Gennadii G. Matvienko, Editor(s)

© SPIE. Terms of Use
Back to Top