Figure 1 (IMAGE) Nagoya University Caption Secondary electrons (SEs) emitted from the surface layer are detected by the SE microscopy whereas the SEs from the bottom layer are absorbed or scattered by the surface layer. Credit Reiko Matsushita Usage Restrictions Credit must be given where image is used License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.