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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 21 — Oct. 11, 2010
  • pp: 21567–21572

Pupil matching of Zernike aberrations

C. E. Leroux, A. Tzschachmann, and J. C. Dainty  »View Author Affiliations

Optics Express, Vol. 18, Issue 21, pp. 21567-21572 (2010)

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The measurement of the wavefront at the exit pupil of an optical system is a reliable method to investigate its imaging performance. It is sometimes necessary to compare the measurement obtained with a wavefront sensor to some known aberration function, which is for example given by a simulation or a gold standard measurement technique such as interferometry. For accurate measurement systems, the residual after direct subtraction of the two wavefronts is often partly due to a mismatch between coordinate systems. We present in this paper a method that uses the Zernike expansion of wavefronts to numerically cancel such small alignment errors. We use this algorithm to quantify the accuracy of a custom-built Shack-Hartmann wavefront sensor in the measurement of known aberration functions.

© 2010 Optical Society of America

OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(220.0220) Optical design and fabrication : Optical design and fabrication

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: July 12, 2010
Revised Manuscript: September 22, 2010
Manuscript Accepted: September 24, 2010
Published: September 27, 2010

C. E. Leroux, A. Tzschachmann, and J. C. Dainty, "Pupil matching of Zernike aberrations," Opt. Express 18, 21567-21572 (2010)

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