Experimental study of z resolution in acousto-optical coherence tomography using random phase jumps on ultrasound and light
arXiv:1302.1343 · doi:10.1364/AO.52.000949
Abstract
Acousto-Optical Coherence Tomography (AOCT) is a variant of Acousto Optic Imaging (also called Ultrasound modulated Optical Tomography) that makes possible to get resolution along the ultrasound propagation axis . We present here new AOCT experimental results, and we study how the resolution depends on time step between phase jumps , or on the correlation length . By working at low resolution, we perform a quantitative comparison of the measurements with the theoretical Point Spread Function (PSF). We present also images recorded with different resolution, and we qualitatively show how the image quality varies with , or .