Faris G W, Byer R L
Appl Opt. 1988 Dec 15;27(24):5202-12. doi: 10.1364/AO.27.005202.
We report 3-D imaging of density in a supersonic expansion using beam-deflection optical tomography. Quantitative high-resolution images with absolute accuracy of 3%, dynamic range of 500:1, and spatial resolution to within a factor of 1.7 of the diffraction limit were produced with a He-Ne laser and simple apparatus. Theory shows that the spatial frequency content of beam-deflection measurements is well suited for tomographic reconstruction. The theory for the diffraction-limited resolution for tomography is presented.
我们报道了利用光束偏转光学层析成像技术对超声速膨胀中的密度进行三维成像。使用氦氖激光器和简单设备生成了绝对精度为3%、动态范围为500:1且空间分辨率达到衍射极限1.7倍以内的定量高分辨率图像。理论表明，光束偏转测量的空间频率成分非常适合层析重建。本文给出了层析成像衍射极限分辨率的理论。
