Jesson D E, Pavlov K M, Morgan M J, Usher B F
School of Physics, Monash University, Victoria 3800, Australia.
Phys Rev Lett. 2007 Jul 6;99(1):016103. doi: 10.1103/PhysRevLett.99.016103. Epub 2007 Jul 5.
We use Lloyd's mirror to modulate electron photoemission in photoemission electron microscopy. This results in the projection of Lloyd's fringes on to three-dimensional (3D) surface objects. An iterative reconstruction method is used to correct for distortions in the fringe pattern due to the cathode immersion lens, thereby providing a quantitative interpretation of surface shape. It is therefore possible to extract 3D height information directly from a two-dimensional, plan-view image. The technique is of sufficient intensity and contrast to study real-time changes in surface topography and we apply the method to study unusual contact-line dynamics during the reactive wetting of metal droplets.
我们使用劳埃德镜来调制光发射电子显微镜中的电子光发射。这会导致劳埃德条纹投射到三维（3D）表面物体上。采用迭代重建方法来校正由于阴极浸没透镜导致的条纹图案失真，从而对表面形状进行定量解释。因此，可以直接从二维平面图图像中提取3D高度信息。该技术具有足够的强度和对比度来研究表面形貌的实时变化，并且我们应用该方法来研究金属液滴反应性润湿过程中异常的接触线动力学。
