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用光回波形成高分辨图像 光学相干层析术 ( OCT)是一种全新的光学成像形式。通过测量回波时间延迟和后向散射光大小 ,光学相干层析术可进行材料及生物系统内部微观结构高分辨率横断面层析成像。图像分辨率可达 1～ 1 5 μm,比传统的超声波高 1～ 2个数量级。成像可以就地实
High-resolution imaging with optical echoes Optical coherence tomography (OCT) is a new form of optical imaging. Optical coherence tomography enables the high-resolution cross-sectional tomography of microstructures within materials and biological systems by measuring echo time delays and the amount of backscattered light. The image resolution can reach 1 ~ 15 μm, which is 1 ~ 2 orders of magnitude higher than traditional ultrasound. Imaging can be real