Weise W, Zinin P, Briggs A, Wilson T, Boseck S
Physics Department, University of Bremen, Germany.
J Acoust Soc Am. 1998 Jul;104(1):181-91. doi: 10.1121/1.423268.
The determination of the modulus of the pupil function in reflection acoustic and optical microscopy with the help of spherical particles is demonstrated. The theoretical examination shows that this method can give good results if the pupil function drops smoothly towards the edge. For a pupil with a sharp edge this technique can give the accurate pupil function only by imaging large spheres. The dependence of the accuracy of the method on the size of the spherical particle is analyzed. Numerical and experimental results obtained for the confocal scanning optical microscope and the scanning acoustic microscope are examined.
展示了借助球形颗粒在反射声学和光学显微镜中确定光瞳函数模量的方法。理论研究表明，如果光瞳函数朝着边缘平滑下降，该方法能给出良好结果。对于具有尖锐边缘的光瞳，此技术只有通过对大球体成像才能得到准确的光瞳函数。分析了该方法的精度对球形颗粒尺寸的依赖性。研究了共焦扫描光学显微镜和扫描声学显微镜获得的数值和实验结果。
