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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 2 — Jan. 23, 2006
  • pp: 635–643

Hartmann-Shack analysis errors

Naftali Zon, Orr Srour, and Erez N. Ribak  »View Author Affiliations


Optics Express, Vol. 14, Issue 2, pp. 635-643 (2006)
http://dx.doi.org/10.1364/OPEX.14.000635


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Abstract

A theoretical model for reconstruction errors in the Hartmann-Shack wave-front sensor was constructed. The measured pattern of a regular grid of spots can be analyzed by their individual centroiding or by a global Fourier demodulation. We investigate pixelization errors in the camera and Poisson errors in the camera pixels. We show that by the Fourier demodulation technique it is possible to overcome pixelization errors which occur in the traditional centroid technique. By supporting simulations we show that the two methods coincide for an infinite number of pixels per spot.

© 2006 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(100.2650) Image processing : Fringe analysis

ToC Category:
Instrumentation, Measurement, and Metrology

Citation
Naftali Zon, Orr Srour, and Erez N. Ribak, "Hartmann-Shack analysis errors," Opt. Express 14, 635-643 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-2-635


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