PEEM is a type of emission microscopy that generates image contrast by utilizing the local variations in electron emission. To excite the electron, sources of energy such as X-ray radiation, UV light, or synchrotron radiation are used. Since the electron emission is from a shallow layer, the surface of the sample is very sensitive.

光发射 电子 显微镜 （PEEM，也称为 光电子显微镜，PEM）是一种电子显微镜，它利用电子发射的局部变化来产生图像对比度。 激发通常由紫外线，同步辐射或 X射线 源产生。 PEEM通过收集发射的 二次电子 间接测量系数在吸收过程中随着初级纤芯 空穴 的产生而在电子级联中产生的电子。 PEEM是一种表面敏感 技术，因为发射的电子来自浅层。 在物理学中，这种技术被称 …

2023年3月2日 · Photoemission electron microscope (PEEM) is a full-field imaging technique which can resolve surfaces in real space and momentum space providing rich information of its electronic structure.

PEEM is an electron microscope imaging technique. A surface is illuminated by ultraviolet (UV) radiation. The UV light generates photoelectrons for which intensity greatly depends on the chemical composition and the topography of the surface.

PEEM, also called photoelec-tron microscopy (PEM), is the most widely used type of emission microscopy and is closely related to the more recently developed low-energy electron microscopy (LEEM) (Bauer, 1994).

2023年5月4日 · Photoemission Electron Microscope (PEEM) Photoemission occurs when an electron absorbs the energy of a photon (light) and is ejected out of the material. By employing electrostatic lenses, we can focus and detect these electrons to construct an image of the sample.

LEEM & PEEM made true surface sensitive electron microscopy possible with a lateral resolution in the nanometer range. Learn More!

2023年8月1日 · Photoemission electron microscopy (PEEM) is an experimental tool that projects the electrons emitted from sample’s surface by the photoelectric effect. PEEM was first demonstrated in 1933 [1] and was commercialized in the following decades.

2006年5月30日 · PEEM probes photoelectrons in a high-contrast imaging technique that is sensitive to the surface electronic structure. In this paper we illustrate the principles of PEEM and analyze important PEEM contrast mechanisms.

In the development of PEEM, the Oregon microscope project, lead by Griffith and Rempfer, played an important role. Griffith and Rempfer built an ultrahigh vacuum UV-PEEM with a spatial resolution of 10 nm and produced a steady stream of beautiful micrographs of...