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Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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Updated: May 6, 2026

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
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使用单离子微进行大规模平行连贯激光测距

Johann Riemensberger1, Anton Lukashchuk1, Maxim Karpov1

  • 1Laboratory of Photonics and Quantum Measurements (LPQM), Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland.

Nature
|May 15, 2020
PubMed
概括
此摘要是机器生成的。

一个新的基于光子芯片的单离子微使大规模平行连贯测距 (FMCW lidar) 成为可能. 这一突破显著提高了自动驾驶中的3D距离和速度测量的获取速度和并行性.

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科学领域:

  • 光学和光学工程
  • 传感器技术
  • 自主系统

背景情况:

  • 连贯测距或频率调制连续波 (FMCW) 激光雷达对于自动驾驶中的3D距离和速度测量至关重要.
  • 目前的FMCW激光雷达系统由于对精确声和高度连贯的激光源的要求而存在低采集速度和有限的并行化问题.
  • 这阻碍了它们与飞行时间系统相比的广泛采用.

研究的目的:

  • 展示一个庞大的并行连贯激光雷达系统.
  • 克服现有的FMCW激光雷达技术的速度和并行限制.
  • 实现用于先进应用的紧,超高率的连贯激光雷达系统.

主要方法:

  • 采用基于光子芯片的超低损失的单离子微.
  • 使用激光器的快速声在孤独的存在范围内.
  • 将单个激光的声同时传输到所有光谱牙, 实现并行.

主要成果:

  • 展示了一个巨大的平行FMCW激光雷达系统,产生了30个不同的频道.
  • 以每秒3兆像素的速度实现并行距离和速度测量.
  • 展示了每秒超过150兆像素的采样速率和图像更新速率增加两级的潜力.

结论:

  • 在FMCW激光雷达中开发的单离子微方法实现了前所未有的并行性.
  • 这种技术为紧,超高率的连贯激光雷达系统提供了途径.
  • 与光子相集成可以进一步增强自动驾驶和其他应用的激光雷达功能.