基于声光编码照明的无扫描显微镜
Andrea Marchese1, Pietro Ricci1, Peter Saggau2
1Department of Applied Physics, Universitat de Barcelona, Martí i Franquès, 1, 08028 Barcelona, Spain.
Nanophotonics (Berlin, Germany)
|January 18, 2024
概括
这项研究引入了一种新的无扫描光学显微镜技术,用于高速的亚微米成像. 该技术可实现每秒数千,克服了动态科学和工业过程当前方法的局限性.
科学领域:
- 光学显微镜的使用方法
- 科学成像科学成像技术
- 过程特征化 过程特征化
背景情况:
- 目前的光学显微镜方法因率限制而难以成像快速事件.
- 现有的技术通常仅限于每秒数百,对于神经元信号或制造等动态过程是不够的.
研究的目的:
- 为展示一种新的无扫描光学显微镜技术.
- 为了实现高速应用,以每秒数千的速度进行亚微米成像.
主要方法:
- 使用单像素摄像头与并行编码照明相结合.
- 在一个具有多个声频的马赫-泽恩德干扰仪中使用了两个声光衍射器 (AOD).
- 从单个光二极管通过光谱分析重建图像.
主要成果:
- 在每秒数千的速度下实现了无扫描,亚微米成像.
- 展示了高达400 × 400像素的成像性能.
- 成功地以每秒5000的速度描述了动态事件.
结论:
- 开发的技术克服了传统光学显微镜的速度限制.
- 该方法为科学研究和工业监测中的高速成像提供了可行的解决方案.
- 该系统的速度主要受到声光偏光器带宽和激光功率的限制.
相关概念视频
Confocal Fluorescence Microscopy
13.3K
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,...
13.3K
Super-resolution Fluorescence Microscopy
7.0K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
7.0K
Imaging Biological Samples with Optical Microscopy
4.7K
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
4.7K
Overview of Microscopy Techniques
10.4K
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...
10.4K


