Reduction of two-photon holographic speckle using shift-averaging | Zendy

Suhail Matar | Zendy; Lior Golan | Zendy; Shy Shoham | Zendy

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Reduction of two-photon holographic speckle using shift-averaging

Author(s) -

Suhail Matar,

Lior Golan,

Shy Shoham

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.025891

Subject(s) - holography , speckle pattern , optics , speckle noise , photon , electronic speckle pattern interferometry , projection (relational algebra) , physics , speckle imaging , reduction (mathematics) , holographic interferometry , computer science , mathematics , algorithm , geometry

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.

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