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显微镜科学与教学知识中心

显微镜科学与教学知识中心

显微镜科学与教学知识中心

徕卡显微系统的知识库提供有关显微镜学科的科学研究和教学材料。内容旨在对显微镜初学者、有经验的显微镜操作实践者和使用显微镜的科学家在他们的日常工作和实验有所帮助。这里有探索交互式教程和应用笔记,你可以找到你需要的显微镜的基础知识以及前沿技术——快来加入徕卡显微知识社区,分享您的专业知识!
[Translate to chinese:] Images of the same area of a processed wafer taken with standard (left) and oblique (right) brightfield illumination using a Leica compound microscope. The defect on the wafer surface is clearly more visible with oblique illumination.

显微镜不同观察方法下的快速半导体检测

已刻蚀的晶圆和集成电路(IC)在生产过程中的半导体检测对于识别和减少缺陷非常重要。
[Translate to chinese:] Intensity distribution (arbitrary color coding) of an image of two points where the distance between them corresponds to the Rayleigh criterion.

显微镜分辨率:概念、因素和计算

在显微镜学中,‘分辨率’一词用于阐述显微镜对细节进行区分的能力。换言之,这是样本内两个能被观察人员或者显微镜摄像头区分的实体点之间的最小距离。显微镜的分辨率本质上与光学元件的数值孔径(NA)以及用于观察样本标本的光波长有关。此外,我们必须考虑Ernst Abbe于1873年首次提出的衍射极限。本文章包含了这些概念的历史介绍并使用相对简单的术语对其进行了解释。
A 17th-century compound microscope (© Golub Collection – University of California, Berkeley/Steven Ruzin, Curator)

A Brief History of Light Microscopy – From the Medieval Reading Stone to Super-Resolution

The history of microscopy begins in the Middle Ages. As far back as the 11th century, plano-convex lenses made of polished beryl were used in the Arab world as reading stones to magnify manuscripts.…
TIRF image of brest carcinoma tumor cells expressing GFP tagged cell adhesion Molecule CD44 that is expressed on the cell membrane, imagined in TIRF.

Total Internal Reflection Fluorescence (TIRF) Microscopy

Total internal reflection fluorescence (TIRF) is a special technique in fluorescence microscopy developed by Daniel Axelrod at the University of Michigan, Ann Arbor in the early 1980s. TIRF microscopy…
TIRF Image of Tubulin, YFP, penetration depth: 120 mm

Applications of TIRF Microscopy in Life Science Research

The special feature of TIRF microscopy is the employment of an evanescent field for fluorophore excitation. Unlike standard widefield fluorescence illumination procedures with arc lamps, LEDs or…

Super-Resolution GSDIM Microscopy

The nanoscopic technique GSDIM (ground state depletion microscopy followed by individual molecule return) provides a detailed image of the spatial arrangement of proteins and other biomolecules within…
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