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相关概念视频

Overview of Microscopy Techniques01:22

Overview of Microscopy Techniques

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The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
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Scanning Electron Microscopy01:07

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A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
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Atomic Force Microscopy01:08

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Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
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相关实验视频

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Scanning-probe Single-electron Capacitance Spectroscopy
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一个扫描探针显微镜,在环境条件下兼容量子传感.

Ke Bian1, Wentian Zheng1, Xiakun Chen1

  • 1International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.

The Review of scientific instruments
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概括

我们开发了一种新的环境扫描探针显微镜,与空 (NV) 量子传感兼容. 该系统可实现高分辨率成像和NV中心的操纵,用于增强量子传感和量子比特制造.

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科学领域:

  • 量子传感器是一种量子传感器.
  • 纳米技术 纳米技术
  • 显微镜的使用方法

背景情况:

  • 钻石中的空 (NV) 中心对于量子传感应用至关重要.
  • 现有的扫描探针显微镜 (SPM) 在与量子传感技术的整合方面存在局限性.

研究的目的:

  • 设计和建造一个与NV中心量子传感兼容的新型环境SPM.
  • 为了实现量子应用的纳米尺度目标的高分辨率成像和操纵.

主要方法:

  • 使用qPlus型调叉作为SPM的电流/力传感器,以实现高刚性和稳定性.
  • 将SPM与NV中心量子传感技术集成,以提高灵敏度和精度.

主要成果:

  • 在扫描道显微镜模式下达到原子分辨率,在原子力显微镜模式下达到1.2nm分辨率.
  • 展示了纳米规模目标的直接成像和NV中心静电环境的操纵.
  • 展示了具有20nm空间分辨率的扫描磁力测量和电子测量.

结论:

  • 开发的SPM系统可以将色中心量子比特集成到SPM尖端,从而创建"量子尖端".
  • 这项技术能够以纳米或原子精度制造颜色中心量子比特,从而推进量子技术.