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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 12 — Apr. 20, 2013
  • pp: 2940–2949

Phase aberration correction by correlation in digital holographic adaptive optics

Changgeng Liu, Xiao Yu, and Myung K. Kim  »View Author Affiliations


Applied Optics, Vol. 52, Issue 12, pp. 2940-2949 (2013)
http://dx.doi.org/10.1364/AO.52.002940


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Abstract

We present a phase aberration correction method based on the correlation between the complex full-field and guide-star holograms in the context of digital holographic adaptive optics (DHAO). Removal of a global quadratic phase term before the correlation operation plays an important role in the correction. Correlation operation can remove the phase aberration at the entrance pupil plane and automatically refocus the corrected optical field. Except for the assumption that most aberrations lie at or close to the entrance pupil, the presented method does not impose any other constraints on the optical systems. Thus, it greatly enhances the flexibility of the optical design for DHAO systems in vision science and microscopy. Theoretical studies show that the previously proposed Fourier transform DHAO (FTDHAO) is just a special case of this general correction method, where the global quadratic phase term and a defocus term disappear. Hence, this correction method realizes the generalization of FTDHAO into arbitrary DHAO systems. The effectiveness and robustness of this method are demonstrated by simulations and experiments.

© 2013 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(170.0180) Medical optics and biotechnology : Microscopy
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: January 25, 2013
Revised Manuscript: March 27, 2013
Manuscript Accepted: March 27, 2013
Published: April 19, 2013

Virtual Issues
Vol. 8, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Changgeng Liu, Xiao Yu, and Myung K. Kim, "Phase aberration correction by correlation in digital holographic adaptive optics," Appl. Opt. 52, 2940-2949 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-12-2940

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