Holographic Fourier synthesis of dynamic Moiré-like patterns in the photorefractive Bi12TiO20 crystal

Paulo Acioly M. dos Santos; G. N. de Oliveira

doi:10.1117/1.2148908

1 December 2005 Holographic Fourier synthesis of dynamic Moiré-like patterns in the photorefractive Bi₁₂TiO₂₀ crystal

Paulo Acioly M. dos Santos, G. N. de Oliveira

Author Affiliations +

Optical Engineering, Vol. 44, Issue 12, 125803 (December 2005). https://doi.org/10.1117/1.2148908

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.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Paulo Acioly M. dos Santos and G. N. de Oliveira "Holographic Fourier synthesis of dynamic Moiré-like patterns in the photorefractive Bi₁₂TiO₂₀ crystal," Optical Engineering 44(12), 125803 (1 December 2005). https://doi.org/10.1117/1.2148908

Published: 1 December 2005

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