Three-Dimensional Optical Tomographic Imaging of Supersonic Jets through Inversion of Phase Data Obtained through the Transport-of-Intensity Equation
Applied Optics, Vol. 43, Issue 21, pp. 4133-4141 (2004)
http://dx.doi.org/10.1364/AO.43.004133
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Abstract
We report experimental results of quantitative imaging in supersonic circular jets by using a monochromatic light probe. An expanding cone of light interrogates a three-dimensional volume of a supersonic steady-state flow from a circular jet. The distortion caused to the spherical wave by the presence of the jet is determined through our measuring normal intensity transport. A cone-beam tomographic algorithm is used to invert wave-front distortion to changes in refractive index introduced by the flow. The refractive index is converted into density whose cross sections reveal shock and other characteristics of the flow.
© 2004 Optical Society of America
OCIS Codes
(100.3010) Image processing : Image reconstruction techniques
(100.3190) Image processing : Inverse problems
(100.5070) Image processing : Phase retrieval
(100.6950) Image processing : Tomographic image processing
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.6960) Medical optics and biotechnology : Tomography
Citation
Hemanth Thayyullathil, Rajesh Langoju, Renganathan Padmaram, R. Mohan Vasu, Rajan Kanjirodan, and Lalit M. Patnaik, "Three-Dimensional Optical Tomographic Imaging of Supersonic Jets through Inversion of Phase Data Obtained through the Transport-of-Intensity Equation," Appl. Opt. 43, 4133-4141 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-21-4133
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