Abstract
The space–time correlation function of the intensity of light scattered off a medium with a constant velocity gradient has been calculated. One property, in particular, of this correlation function, which may be referred to as speckle motion or speckle flow, enables an experimental determination of the tensor components of the velocity gradient. Influence of Brownian motion and finite scattering volume are estimated. Experimental results, obtained at a tube flow, are shown to be in accordance with the theory.
© 1983 Optical Society of America
Full Article | PDF ArticleMore Like This
N. Takai, T. Iwai, and T. Asakura
Appl. Opt. 22(1) 170-177 (1983)
Theyencheri Narayanan, Cecil Cheung, Penger Tong, Walter I. Goldburg, and Xiao-lun Wu
Appl. Opt. 36(30) 7639-7644 (1997)
J. H. Churnside and H. T. Yura
Appl. Opt. 22(17) 2559-2565 (1983)