Interferometry based on double exposure Fourier transform holography in photorefractive crystals is applied for visualization of aerodynamic flow fields. The interferograms obtained are of similar quality as those produced using holographic film but with greatly simplified procedures. The results presented are obtained using a high-power cw argon laser and iron doped lithium niobate crystals. The angular characteristics of the Fourier transform data holograms are studied.
© 1989 Optical Society of America
Original Manuscript: June 22, 1988
Published: April 15, 1989
A. Hafiz, R. Magnusson, J. S. Bagby, D. R. Wilson, and T. D. Black, "Visualization of aerodynamic flow fields using photorefractive crystals," Appl. Opt. 28, 1521-1524 (1989)