Abstract

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

Noise filtering in the interference pattern by dynamic holographic recording in photorefractive Bi₁₂TiO₂₀ crystals

D. Tontchev, V. Sainov, and G. Stoilov
Appl. Opt. 35(17) 3087-3090 (1996)

Electrophotochromic gratings in photorefractive Bi₁₂TiO₂₀ crystals

A. A. Kamshilin, J. Frejlich, and P. M. Garcia
Appl. Opt. 31(11) 1787-1793 (1992)

Holographic interferometry using −1-order diffraction in photorefractive Bi₁₂SiO₂₀ and Bi₁₂TiO₂₀ crystals

S. L. Sochava, R. C. Troth, and S. I. Stepanov
J. Opt. Soc. Am. B 9(8) 1521-1527 (1992)

Photorefractive moiré-like patterns for the multifringe projection method in Fourier transform profilometry

M. E. de Oliveira, G. N. de Oliveira, J. C. de Souza, and P. A. M. dos Santos
Appl. Opt. 55(5) 1048-1053 (2016)

Dynamics of photoinduced lens formation in a photorefractive Bi₁₂TiO₂₀ crystal under an external dc electric field

C. M. Gómez Sarabia, P. A. Márquez Aguilar, J. J. Sánchez Mondragón, S. Stepanov, and V. Vysloukh
J. Opt. Soc. Am. B 13(12) 2767-2774 (1996)