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Reduction of two-photon holographic speckle using shift-averaging |
Optics Express, Vol. 19, Issue 27, pp. 25891-25899 (2011)
http://dx.doi.org/10.1364/OE.19.025891
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Abstract
Holographic speckle is a major impediment for the emerging applications of multiphoton holographic projection in biomedical imaging, photo-stimulation and micromachining. Time averaging of multiple shifted versions of a single hologram (“shift-averaging”) is a computationally-efficient method that was recently shown to deterministically eliminate holographic speckle in single-photon applications. Here, we extend these results and show, computationally and experimentally, that in two-photon holographic excitation shift-averaging also reduces holographic speckle better than “random” averaging of multiple calculated holograms.
© 2011 OSA
OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(090.2870) Holography : Holographic display
(190.4180) Nonlinear optics : Multiphoton processes
(070.6120) Fourier optics and signal processing : Spatial light modulators
ToC Category:
Holography
History
Original Manuscript: September 22, 2011
Revised Manuscript: November 9, 2011
Manuscript Accepted: November 11, 2011
Published: December 5, 2011
Virtual Issues
Vol. 7, Iss. 2 Virtual Journal for Biomedical Optics
Citation
Suhail Matar, Lior Golan, and Shy Shoham, "Reduction of two-photon holographic speckle using shift-averaging," Opt. Express 19, 25891-25899 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-19-27-25891
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