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Applied Optics

Applied Optics


  • Vol. 39, Iss. 25 — Sep. 1, 2000
  • pp: 4524–4528

Dynamic holographic moiré patterns in photorefractive Bi12TiO20 and small-angle measurements

Paulo Acioly Marques dos Santos, Luis Carlos da Silva Nunes, and Inaya Corrêa  »View Author Affiliations

Applied Optics, Vol. 39, Issue 25, pp. 4524-4528 (2000)

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A procedure for obtaining real-time holographic moirélike patterns and measuring small angles is proposed. Two rotated sinusoidal phase gratings are superposed, and the result represents a promising technique for making small-angle measurements in metrological applications. The experiments are performed with a diffusion-only recording mechanism in the photorefractive crystal Bi12TiO20 illuminated by λ = 0.633 µm light from a He–Ne laser.

© 2000 Optical Society of America

OCIS Codes
(090.7330) Holography : Volume gratings
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques

Original Manuscript: October 18, 1999
Revised Manuscript: April 6, 2000
Published: September 1, 2000

Paulo Acioly Marques dos Santos, Luis Carlos da Silva Nunes, and Inaya Corrêa, "Dynamic holographic moiré patterns in photorefractive Bi12TiO20 and small-angle measurements," Appl. Opt. 39, 4524-4528 (2000)

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