… We report efficient acousto-optic control of speckle contrast at the output of multimode fibers
(MMFs) using a cylindrical piezoelectric transducer (PZT) vibrating in the radial direction. …

… As a future direction, we will investigate utilizing our fast simulation platform to accurately
reconstruct three dimensional volumes of cerebral blood flow in the sub-diffuse regime. …

… view using differences in the location of speckles (=small acoustic markers) throughout the
… longitudinal direction, and as systolic shortening prior to lengthening in the radial direction. …

… speckle contrast signal. Here, we derive an expression of linear approximation function for
speckle contrast, … to vessel direction, and all used SD directions on the obtained speckle …

… of two radially shifted speckle patterns … speckles of mean size o cannot scatter light in a
direction U higher than Ala. Let us consider the rays scattered by the nth area of H in this direction…

… , and velocity in longitudinal, radial, and circumferential directions. It can also quantify rotational
… the directional bias of the technology.1 One should have prior knowledge of direction of …

… 0’ of the speckle pattern, and it is clear from the figure that the speckle contrast remains high
for Y … In the azimuthal direction, the width of the correlation function (ie the speckle width) is …

… by 2D, speckle tracking decreases early when the scar is >25%, whereas radial strain by
3D … and the epicardial fiber oriented in the radial direction during the systolic period. These …

… be calculated for individual segments and specific vectors of direction. Three different
components of contraction have been defined: radial, longitudinal, and circumferential (figure 5). …

… effect of adding a single strong wave to the speckle-forming waves in the direction of their
axis. The size of a speckle without the addition of the reference beam corresponds roughly to …