Title: Ghost Imaging with Free Electron-Photon Pairs Show Chinese title

Title: 以自由电子-光子对进行的鬼成像

Abstract: Coincidence imaging, also known as ghost imaging, is a technique that exploits correlations between two particles to reconstruct information about a specimen. The particle that relays the spatial information about the object remains completely non-interacting, while the particle used to probe the object is not spatially resolved. While ghost imaging has been primarily implemented on photonic platforms, it becomes particularly intriguing when applied to particles with fundamentally different properties, such as massive, charged electrons and massless, neutral photons, especially considering the role of both particles as cornerstones of highly advanced microscopic platforms. In this work, we investigate coincidence imaging using electron-cathodoluminescence photon pairs generated within a transmission electron microscope. Utilizing a custom-built free-space cathodoluminescence setup, we demonstrate ghost imaging of complex patterns. We are able to obtain a spatial resolution down to 2 $\mu$m, paving the way for adaptation of quantum-enhanced imaging techniques from photonic quantum optics to electron microscopy. Show Chinese abstract

Abstract: 关联成像，也称为鬼成像，是一种利用两个粒子之间的相关性来重建关于样本信息的技术。 传递关于物体的空间信息的粒子完全不与物体相互作用，而用于探测物体的粒子则没有空间分辨率。 虽然鬼成像主要在光子平台上实现，但当应用于具有根本不同性质的粒子时，例如质量大的带电电子和无质量的中性光子时，它变得特别引人注目，尤其是考虑到这两种粒子作为高度先进显微平台基石的作用。 在本工作中，我们研究使用在透射电子显微镜内产生的电子-阴极发光光子对进行关联成像。 利用一个定制的自由空间阴极发光装置，我们展示了复杂图案的鬼成像。 我们能够获得高达2 $\mu$m的空间分辨率，为将量子增强成像技术从光子量子光学适应到电子显微镜铺平了道路。