Bourgeois Marc R, Nixon Austin G, Chalifour Matthieu, Masiello David J
Department of Chemistry, University of Washington, Seattle, WA 98195, USA.
Department of Physics, University of Washington, Seattle, WA 98195, USA.
Sci Adv. 2023 Dec 22;9(51):eadj6038. doi: 10.1126/sciadv.adj6038. Epub 2023 Dec 20.
Advances in the ability to manipulate free-electron phase profiles within the electron microscope have spurred development of quantum-mechanical descriptions of electron energy loss (EEL) processes involving transitions between phase-shaped transverse states. Here, we elucidate an underlying connection between two ostensibly distinct optical polarization analogs identified in EEL experiments as manifestations of the same conserved scattering flux. Our work introduces a procedure for probing general tensorial target characteristics including global mode symmetries and local polarization.
在电子显微镜内操纵自由电子相位分布能力的进步，推动了对涉及相形横向态之间跃迁的电子能量损失（EEL）过程的量子力学描述的发展。在此，我们阐明了在EEL实验中确定的两个表面上不同的光学偏振类似物之间的潜在联系，它们是同一守恒散射通量的表现。我们的工作引入了一种探测一般张量目标特性的程序，包括全局模式对称性和局部偏振。
Zotero 插件
