Kennedy S M, Zheng C X, Jesson D E
School of Physics, Monash University, Melbourne, Victoria, 3800, Australia.
Department of Civil Engineering, Monash University, Melbourne, Victoria, 3800, Australia.
Nanoscale Res Lett. 2017 Dec;12(1):68. doi: 10.1186/s11671-017-1837-y. Epub 2017 Jan 23.
Image simulation methods are applied to interpret mirror electron microscopy (MEM) images obtained from a movie of GaAs droplet epitaxy. Cylindrical symmetry of structures grown by droplet epitaxy is assumed in the simulations which reproduce the main features of the experimental MEM image contrast, demonstrating that droplet epitaxy can be studied in real-time. It is therefore confirmed that an inner ring forms at the droplet contact line and an outer ring (or skirt) occurs outside the droplet periphery. We believe that MEM combined with image simulations will be increasingly used to study the formation and growth of quantum structures.
图像模拟方法被应用于解释从砷化镓液滴外延的一段视频中获得的镜像电子显微镜（MEM）图像。在模拟中假设了通过液滴外延生长的结构具有圆柱对称性，该模拟再现了实验MEM图像对比度的主要特征，表明可以实时研究液滴外延。因此证实了在液滴接触线处形成一个内环，并且在液滴周边之外出现一个外环（或裙边）。我们相信，MEM与图像模拟相结合将越来越多地用于研究量子结构的形成和生长。
