Numerical correction of aberrations via phase retrieval with speckle illumination
Optics Letters, Vol. 34, Issue 4, pp. 521-523 (2009)
http://dx.doi.org/10.1364/OL.34.000521
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Abstract
What we believe to be a novel technique for wavefront aberration measurement using speckle patterns is presented. The aberration correction is done numerically. A tilted lens is illuminated with a partially developed speckle field, and the transmitted light intensity is sampled at axially displaced planes. The speckle intensity patterns are then sent to a phase-retrieval algorithm to reconstruct the complete wavefront. The nature of the wavefront aberration is determined through Zernike polynomials. Numerical correction of the perturbed wavefront is performed based on rms error and the Strehl ratio. Restoration of the wavefront from a phase object with high spatial frequency content shows the effectiveness of our method.
© 2009 Optical Society of America
OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(030.6140) Coherence and statistical optics : Speckle
(050.1960) Diffraction and gratings : Diffraction theory
(090.1000) Holography : Aberration compensation
(100.5070) Image processing : Phase retrieval
(090.1995) Holography : Digital holography
ToC Category:
Holography
History
Original Manuscript: November 7, 2008
Revised Manuscript: December 27, 2008
Manuscript Accepted: January 6, 2009
Published: February 12, 2009
Citation
Percival F. Almoro, Phanindra N. Gundu, and Steen G. Hanson, "Numerical correction of aberrations via phase retrieval with speckle illumination," Opt. Lett. 34, 521-523 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-4-521
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