
【化】 electron microscopy
electricity
【计】 telewriting
【化】 electricity
【医】 Elec.; electricity; electro-; galvano-
lens; looking glass; mirror
【化】 mirror
【医】 mirror; slass
imitate; knowledge; learn; mimic; school; study; subject of study
Electron microscopy (电镜学) is a branch of microscopy that utilizes accelerated electron beams to generate high-resolution images of specimens at nanometer-scale resolutions. The term combines "电" (electricity) and "镜学" (study of imaging systems), reflecting its core mechanism involving electromagnetic lenses . This technology surpasses optical microscopy by using electrons with wavelengths 100,000 times shorter than visible light photons, enabling visualization of ultrastructures in materials science and cellular organelles in biology .
Key technical classifications include:
Applications span nanotechnology development, viral particle analysis (如新冠病毒刺突蛋白研究), and semiconductor quality control. The technique's evolution from Ernst Ruska's 1931 prototype to modern aberration-corrected instruments demonstrates its indispensable role in 21st-century scientific discovery (Journal of Electron Microscopy, 2024).
“电镜学”是研究电子显微镜(Electron Microscopy, EM)技术及其应用的一门交叉学科,涉及物理、材料科学、生物医学等多个领域。以下是详细解释:
电镜学以电子显微镜为核心工具,通过电子束与物质的相互作用来观察微观结构。它属于边缘学科,融合了电磁学、材料科学、计算机技术等领域的知识,成为沟通不同学科的桥梁。
现代电镜已从单一形态观察发展为多功能仪器,例如:
电镜学通常作为材料学、物理学、生物学等专业的必修或选修课程,学生需掌握电镜操作、样品制备及数据分析技能。
电镜学通过高精度成像和多功能分析手段,成为现代科学研究中不可或缺的工具,尤其在纳米科技和生命科学领域具有不可替代的作用。
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