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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 2 — Jan. 27, 2014
  • pp: 1381–1386

Reconfigurable optical null based on counter-rotating Zernike plates for test of aspheres

Shanyong Chen, Chunyu Zhao, Yifan Dai, and Shengyi Li  »View Author Affiliations


Optics Express, Vol. 22, Issue 2, pp. 1381-1386 (2014)
http://dx.doi.org/10.1364/OE.22.001381


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Abstract

In off-axis subapertures of most aspheres, astigmatism and coma dominate the aberrations with approximately quadratic and linear increase as the off-axis distance increases. A pair of counter-rotating Zernike plates is proposed to generate variable amount of Zernike terms Z4 and Z6, correcting most of the astigmatism and coma for subapertures located at different positions on surfaces of various aspheric shapes. The residual subaperture aberrations are then reduced within the vertical dynamic range of measurement of the interferometer. The plates are fabricated with computer generated holograms and the experimental results show the variable aberration correction effect without ghost fringes. The same plates are reconfigurable by counter-rotating to enable near-null test of various aspheres flexibly.

© 2014 Optical Society of America

OCIS Codes
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(220.4840) Optical design and fabrication : Testing

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: November 7, 2013
Revised Manuscript: December 19, 2013
Manuscript Accepted: December 19, 2013
Published: January 14, 2014

Citation
Shanyong Chen, Chunyu Zhao, Yifan Dai, and Shengyi Li, "Reconfigurable optical null based on counter-rotating Zernike plates for test of aspheres," Opt. Express 22, 1381-1386 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-2-1381


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References

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