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Optical Engineering

Holographic Fourier synthesis of dynamic Moiré-like patterns in the photorefractive Bi12TiO20 crystal
Author(s): Paulo Acioly M. dos Santos; G. N. de Oliveira
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Paper Abstract

We propose and physically discuss a kind of holographic Fourier synthesis in the profile of dynamic Moiré-like patterns. The interference patterns are obtained by progressively controlling the superposition of more than two dynamic sinusoidal phase gratings. It represents a new holographic optical nondestructive testing routine in real time for metrological purposes. The sinusoidal phase gratings with slightly different pitches are dynamically generated by photorefraction in the Bi12TiO20 (BTO) crystal sample. The photorefractive holographic medium is used in anisotropic self-diffraction configuration and in a diffusion-only recording mechanism.

Paper Details

Date Published: 1 December 2005
PDF: 6 pages
Opt. Eng. 44(12) 125803 doi: 10.1117/1.2148908
Published in: Optical Engineering Volume 44, Issue 12
Show Author Affiliations
Paulo Acioly M. dos Santos, Univ. Federal Fluminense (Brazil)
G. N. de Oliveira, Univ. Federal Fluminense (Brazil)


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