报告摘要：Natural and artificial intelligence are defined by wiring diagrams for circuits implemented using proteins and silicon respectively.  Remarkably, both biology and silicon chip fabrication are more advanced in their capacity to define the platforms for intelligence than is the technology for imaging the outcomes. Conventional high-resolution microscopy for imaging the interior of three-dimensional objects typically entails destructive sample preparation followed by electron microscopy of resulting surfaces or sections. Here we describe X-ray ptychography, a mixed real space/reciprocal space („wavelet“) technique, which is non-destructive and provides three-dimensional images at steadily improving  resolution, which earlier this year reached 15 nanometers. We show applications to integrated circuit inspection, and give perspective concerning applications to brain science.

Reference: Nature 543, 402–406 (16 March 2017)

http://www.nature.com/nature/journal/v543/n7645/abs/nature21698.html

报告人简介：

Gabriel Aeppli is professor of physics at ETH Zürich and EPF Lausanne, and head of the Photon Science division of the Paul Scherrer Institute. All of his degrees are from MIT and include a BSc in Mathematics and Electrical Engineering, and MSc and PhD in Electrical Engineering. He started his career as a work-study student at IBM and after his PhD moved to Bell Laboratories and then NEC, and worked on problems ranging from liquid crystals to magnetic data storage. He was subsequently co-founder and director of the London Centre for Nanotechnology and Quain Professor at University College London. Aeppli also cofounded the Bio- Nano Consulting Company, of which he remains a non-executive director. He is a frequent advisor to numerous entities worldwide engaged in the funding, evaluation and management of science and technology. Honors include the Mott Prize of the Institute of Physics (London), the Oliver Buckley prize of the American Physical Society, the Néel Medal/International Magnetism Prize of the International Union of Pure and Applied Physics, election to the US Academy of Arts and Sciences, the US National Academy of Sciences and the Royal Society.