18 March 1994 Optical ray deflection tomography with fan-shaped beams
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Interferometric optical tomography is a valuable method for combustion and flow diagnostics. However, it meets serious experimental difficulties when investigated objects are large (about 50 sm or greater) and/or perturbations of refractive index are greater than 0.01. In the latter case the interference fringes become too thin, while in the former case too large and expensive optical elements (lenses and holograms) are required. These difficulties can be overcome by using optical ray-deflection tomography with fan-shaped beams. In the paper a scheme of the tomographic experiment, reconstruction algorithms, and experimental results are presented.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yu. A. Andrienko, Yu. A. Andrienko, } "Optical ray deflection tomography with fan-shaped beams", Proc. SPIE 2122, Laser Applications in Combustion and Combustion Diagnostics II, (18 March 1994); doi: 10.1117/12.171296; https://doi.org/10.1117/12.171296

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