METHOD AND ARRANGEMENT FOR THE CHARACTIZATION OF AN OBJECT WITH LIGHT AND SHEAR MOVEMENT
摘要
Examination light L is transmitted into an object 1. The examination light L is detected as laser speckle I after passing through the object 2. A focussed ultrasonic pulse U with a few hundred oscillations is transmitted into the object 1 and the acoustic radiation force thereof leads to shear in the object 1. As a consequence of the shear in the object 1, the detected speckle <b<I changes. Items of information for a pixel for the imaging of the optical and mechanical properties of the object 1 are obtained from the correlation of the speckle I.
